cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-10 of 13 results. Next

A254532 Number of length n 1..(1+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

1, 1, 1, 2, 4, 6, 11, 20, 33, 62, 135, 317, 692, 1345, 2651, 5741, 12576, 25825, 49270, 90118, 168115, 340003, 751400, 1741713, 4057301, 9232683, 20184851, 42473752, 87925348, 183030469, 382853596, 790870128, 1597901060, 3189861839, 6430641490
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Column 1 of A254539

Examples

			All solutions for n=4
..1....1
..3....3
..2....2
..2....3

Links

A254533 Number of length n 1..(2+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

2, 3, 8, 20, 50, 126, 329, 956, 2897, 8341, 23238, 66544, 194686, 555838, 1532445, 4225095, 12140873, 36623429, 112964359, 345148105, 1027400959, 2988415841, 8604041257, 24715209608, 70743541258, 201532200098, 575286723544
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Column 2 of A254539

Examples

			Some solutions for n=4
..4....1....4....4....4....4....4....4....1....1....1....1....4....4....4....1
..2....3....4....4....2....4....4....2....3....3....3....3....2....2....4....3
..3....4....1....4....2....4....2....4....4....2....2....4....2....2....1....2
..3....1....3....3....2....2....4....4....4....4....3....2....4....1....1....2

Links

A254534 Number of length n 1..(3+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

2, 5, 15, 45, 135, 421, 1466, 5403, 19417, 69205, 249569, 883285, 3024282, 10359274, 37010151, 138333876, 524680726, 1964881580, 7214899381, 26104002605, 93449335588, 331875353107, 1177784053061, 4229817098432, 15554800422055
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Column 3 of A254539

Examples

			Some solutions for n=4
..1....4....4....4....4....1....4....1....4....4....1....1....1....4....1....4
..3....5....4....5....2....3....4....3....2....5....5....5....3....5....5....5
..5....3....4....5....2....4....2....2....2....1....4....2....2....3....3....3
..3....2....3....2....1....4....2....4....2....2....5....4....2....4....3....3

Links

A254535 Number of length n 1..(4+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

3, 10, 40, 160, 670, 3001, 13503, 60408, 270370, 1192385, 5221700, 23404787, 108379668, 507618711, 2353392292, 10735523052, 48337299889, 216062343583, 966793284879, 4375808357962, 20209591137998, 95483805098650
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Column 4 of A254539

Examples

			Some solutions for n=4
..4....6....4....1....1....6....4....6....4....1....4....1....1....6....6....4
..2....3....2....5....5....6....6....3....2....5....6....3....3....6....2....5
..2....5....3....3....2....3....5....5....3....2....2....4....6....6....4....6
..4....4....1....3....1....5....5....1....3....4....2....2....6....2....6....6

Links

A254536 Number of length n 1..(5+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

3, 11, 49, 222, 1087, 5604, 29038, 150268, 764508, 3857845, 19929265, 106104895, 569770022, 3029774261, 15881356126, 82383422858, 426844152225, 2236312098278, 11968665825174, 65501399826033, 362497354225241, 1992577785640176
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Column 5 of A254539

Examples

			Some solutions for n=4
..6....6....1....4....4....6....4....4....4....1....6....4....1....1....4....6
..4....4....7....5....6....3....4....6....4....5....4....5....7....7....2....3
..6....4....7....6....5....5....7....5....7....2....4....1....4....1....6....6
..6....6....7....1....3....7....5....6....6....7....1....6....4....5....4....7

Links

A254537 Number of length n 1..(6+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

4, 20, 105, 576, 3383, 20393, 121774, 709169, 4121638, 24622476, 150895459, 928855881, 5659650136, 34105862488, 205228295685, 1249619101830, 7761595614134, 48955797807546, 308737202532449, 1916725035118260
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Column 6 of A254539

Examples

			Some solutions for n=4
..4....6....8....8....8....4....6....8....1....4....4....6....6....1....1....4
..4....8....2....8....6....2....4....4....7....5....5....8....8....3....5....2
..8....7....8....2....6....4....2....6....4....6....1....1....1....6....4....4
..8....1....6....7....7....4....4....8....8....1....5....3....5....2....5....2

Links

A254538 Number of length n 1..(7+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

5, 28, 163, 1026, 6814, 45472, 297210, 1936867, 12941917, 88456127, 605472534, 4098451778, 27532173631, 186053199184, 1280442885415, 8972454019845, 63101697125668, 438054873198566, 2987530815338138, 20248691923570271
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Column 7 of A254539

Examples

			Some solutions for n=4
..8....1....9....6....4....1....4....4....6....4....9....4....8....1....4....9
..7....8....9....6....6....7....4....4....9....6....3....5....8....8....5....7
..6....7....9....2....6....1....1....6....1....2....3....1....8....3....6....4
..5....2....3....8....6....7....3....7....8....6....6....8....9....4....6....6

Links

A254540 Number of length 2 1..(n+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

1, 3, 5, 10, 11, 20, 28, 37, 41, 54, 58, 75, 91, 109, 116, 139, 146, 172, 196, 221, 230, 262, 290, 324, 355, 390, 404, 445, 458, 499, 539, 583, 626, 674, 690, 739, 787, 839, 859, 917, 937, 996, 1052, 1113, 1136, 1205, 1267, 1337, 1402, 1470, 1496, 1572, 1639, 1716
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Row 2 of A254539

Examples

			All solutions for n=4
..4....1....6....4....1....6....6....6....4....4
..6....3....6....5....5....2....3....4....2....4

Links

A254541 Number of length 3 1..(n+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

1, 8, 15, 40, 49, 105, 163, 253, 307, 466, 540, 768, 997, 1283, 1442, 1862, 2051, 2562, 3053, 3627, 3936, 4749, 5465, 6368, 7230, 8270, 8848, 10189, 10805, 12187, 13557, 15138, 16715, 18646, 19585, 21596, 23572, 25845, 27081, 29803, 31136, 33942, 36650
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Row 3 of A254539

Examples

			Some solutions for n=4
..1....6....6....4....4....6....4....1....6....6....4....6....6....6....6....4
..5....3....4....6....5....6....2....5....4....2....5....3....3....3....6....2
..2....3....4....2....1....3....6....3....5....6....5....5....6....1....6....2

Links

A254542 Number of length 4 1..(n+2) arrays with no leading partial sum equal to a prime.

Original entry on oeis.org

2, 20, 45, 160, 222, 576, 1026, 1849, 2461, 4195, 5217, 8052, 11098, 15300, 18210, 25269, 29296, 38791, 48468, 60634, 68591, 87149, 104149, 126729, 149195, 177607, 196492, 236417, 258581, 301770, 345756, 398586, 452724, 522973, 563863, 640216
Offset: 1

Views

Author

R. H. Hardin, Feb 01 2015

Keywords

Comments

Row 4 of A254539

Examples

			Some solutions for n=4
..6....6....4....4....1....1....4....6....6....4....6....6....6....4....1....6
..2....2....4....5....3....3....6....4....6....2....2....3....2....5....5....2
..4....6....6....3....4....2....4....2....3....4....4....3....1....3....3....6
..2....1....1....2....1....4....6....4....3....2....6....2....6....4....6....4

Links

Showing 1-10 of 13 results. Next

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