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.

Previous Showing 11-19 of 19 results.

A048453 Starting from generation 6 add previous and next term yielding generation 7.

Original entry on oeis.org

127, 237, 403, 520, 729, 879, 1109, 1320, 1544, 1816, 2034, 2326, 2566, 2840, 3124, 3376, 3688, 3938, 4238, 4516, 4796, 5112, 5398, 5722, 6016, 6314, 6620, 6888, 7266, 7510, 7996, 8212, 8746, 8946, 9442, 9668, 10094, 10364, 10754, 11022, 11434, 11656
Offset: 0

Views

Author

Patrick De Geest, May 15 1999

Keywords

Crossrefs

Generation 6 is A048452. See A048448-A048466. See also A047844.

A048454 Starting from generation 7 add previous and next term yielding generation 8.

Original entry on oeis.org

237, 530, 757, 1132, 1399, 1838, 2199, 2653, 3136, 3578, 4142, 4600, 5166, 5690, 6216, 6812, 7314, 7926, 8454, 9034, 9628, 10194, 10834, 11414, 12036, 12636, 13202, 13886, 14398, 15262, 15722, 16742, 17158, 18188, 18614, 19536, 20032, 20848
Offset: 0

Views

Author

Patrick De Geest, May 15 1999

Keywords

Crossrefs

Generation 7 is A048453. See A048448-A048466. See also A047844.

Extensions

Missing a(5) inserted by Sean A. Irvine, Jun 16 2021

A048456 First terms from generation 1 onwards.

Original entry on oeis.org

2, 3, 7, 13, 30, 56, 127, 237, 530, 994, 2192, 4144, 9016, 17192, 36949, 71023, 151024, 292340, 616032, 1199556, 2508660, 4909028, 10201810, 20044004, 41437560, 81683022, 168134730, 332321130, 681582636, 1350091410, 2760703019
Offset: 0

Views

Author

Patrick De Geest, May 15 1999

Keywords

Crossrefs

For "Generations" see A048448-A048455. See also A047844.

A048459 Generation indices to 'Prime last odd terms' of sequence A048458.

Original entry on oeis.org

2, 3, 4, 5, 7, 19, 25, 27, 53, 59, 68, 148, 176, 241, 347, 441, 444, 509, 844, 990, 1607, 1823, 2745, 3244, 3517, 3695
Offset: 1

Views

Author

Patrick De Geest, May 15 1999

Keywords

Crossrefs

For "Generations" see A048448-A048455. See also A047844.

Extensions

a(9)-a(21) from Nathaniel Johnston, Apr 11 2011
a(22)-a(26) from Sean A. Irvine, Jun 18 2021

A048461 Numbers in sorted order taken from all generations.

Original entry on oeis.org

2, 3, 5, 7, 10, 11, 13, 16, 17, 19, 20, 23, 28, 29, 30, 31, 32, 37, 40, 41, 43, 44, 47, 48, 52, 53, 54, 56, 59, 61, 66, 67, 68, 71, 72, 73, 79, 80, 82, 83, 88, 89, 94, 96, 97, 101, 103, 106, 107, 109, 112, 113, 114, 125, 126, 127, 131, 132, 137, 139, 140, 146, 149
Offset: 0

Views

Author

Patrick De Geest, May 15 1999

Keywords

Crossrefs

Cf. A048448-A048455. See also A047844.

A048462 Odd numbers in sorted order from generation 2 onwards.

Original entry on oeis.org

3, 7, 13, 23, 43, 67, 97, 125, 127, 179, 181, 237, 339, 403, 453, 729, 757, 879, 1109, 1399, 2199, 2653, 4491, 5335, 6231, 7461, 8933, 12093, 12613, 14409, 14687, 18183, 18917, 23591, 25131, 27933, 29199, 32877, 36233, 36639, 36949, 49193, 50745
Offset: 0

Views

Author

Patrick De Geest, May 15 1999

Keywords

Crossrefs

Cf. A048448-A048455. See also A047844.

A048463 Smallest prime occurring in generation n (0 if none).

Original entry on oeis.org

2, 3, 7, 13, 97, 127, 127, 757, 0, 8933, 0, 18917, 49193, 53831, 71023, 71023, 0, 0, 17427659, 30196487, 0, 0, 0, 0, 1586875049, 988142237, 7021048691, 1397537747, 0, 2760703019, 2760703019, 0, 0, 1033545746063, 0, 0, 7916712387631, 0, 0, 0
Offset: 0

Views

Author

Patrick De Geest, May 15 1999

Keywords

Crossrefs

For "Generations" see A048448-A048455. See also A047844.

A048464 Indices of primefree generations.

Original entry on oeis.org

9, 11, 17, 18, 21, 22, 23, 24, 29, 32, 33, 35, 36, 38, 39, 40, 48, 49, 50, 54, 56, 57, 58, 65, 66, 67, 69, 70, 72, 74, 76, 77, 78, 79, 81, 83, 85, 86, 88, 89, 91, 93, 95, 96, 97, 99, 100, 101, 106, 107, 108, 110, 111, 113, 114, 115, 121, 125, 126, 128, 129
Offset: 1

Views

Author

Patrick De Geest, May 15 1999

Keywords

Crossrefs

For "Generations" see A048448-A048455. See also A047844.

Extensions

More terms from Sean A. Irvine, Jun 18 2021

A048465 Distinct primes in sorted order from generation 2 onwards.

Original entry on oeis.org

3, 7, 13, 23, 43, 67, 97, 127, 179, 181, 757, 1109, 1399, 8933, 12613, 18917, 49193, 53831, 71023, 199909, 221317, 408379, 821771, 1330519, 17427659, 30196487, 988142237, 1397537747, 1586875049, 2760703019, 4128019327, 7021048691
Offset: 1

Views

Author

Patrick De Geest, May 15 1999

Keywords

Crossrefs

For "Generations" see A048448-A048455. See also A047844.
Previous Showing 11-19 of 19 results.

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