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 1-9 of 9 results.

A030749 Number of new terms at stage n in the formation of A030747; likewise at stage n in the formation of A030787.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 8, 9, 11, 12, 15, 17, 19, 20, 22, 26, 29, 31, 33, 36, 38, 40, 44, 48, 51, 53, 57, 59, 63, 67, 71, 73, 76, 78, 82, 84, 91, 95, 97, 99, 101, 106, 111, 115, 120, 123, 126, 130, 133, 137, 141, 146, 151, 156, 163, 167, 170, 173, 178, 184, 189, 195
Offset: 1

Views

Author

Keywords

Crossrefs

Extensions

More terms from Sean A. Irvine, Apr 08 2020

A030750 a(n)=least k such that s(k)=n, where s=A030747.

Original entry on oeis.org

2, 4, 5, 1, 8, 12, 20, 17, 23, 34, 52, 31, 54, 40, 66, 81, 51, 139, 63, 115, 136, 78, 160, 137, 95, 159, 114, 183, 134, 245, 212, 156, 354, 243, 277, 182, 313, 353, 436, 211, 393, 350, 242, 391, 390, 275, 709, 536, 311, 434, 648, 349
Offset: 1

Views

Author

Keywords

A030751 Record values in A030747.

Original entry on oeis.org

4, 5, 6, 8, 9, 12, 14, 17, 19, 22, 25, 27, 29, 32, 36, 40, 43, 46, 49, 52, 55, 58, 63, 66, 69, 74, 77, 82, 87, 91, 94, 97, 100, 105, 108, 116, 121, 124, 127, 130, 135, 141, 145, 151, 155, 159, 164, 168, 173, 178, 184, 190, 196, 204, 209, 213, 217, 223, 230
Offset: 1

Views

Author

Keywords

Crossrefs

Cf. A030747.

Extensions

More terms and simpler title from Sean A. Irvine, Apr 08 2020

A030752 Positions of record values in A030747.

Original entry on oeis.org

1, 8, 12, 17, 23, 31, 40, 51, 63, 78, 95, 114, 134, 156, 182, 211, 242, 275, 311, 349, 389, 433, 481, 532, 585, 642, 701, 764, 831, 902, 975, 1051, 1129, 1211, 1295, 1386, 1481, 1578, 1677, 1778, 1884, 1995, 2110, 2230, 2353, 2479, 2609, 2742, 2879, 3020, 3166
Offset: 1

Views

Author

Keywords

Extensions

More terms and simpler title from Sean A. Irvine, Apr 08 2020

A030753 s(k)=1, where s=A030747.

Original entry on oeis.org

2, 3, 6, 16, 29, 30, 39, 49, 50, 62, 75, 77, 92, 94, 113, 133, 152, 155, 173, 178, 181, 204, 207, 210, 238, 241, 271, 274, 307, 310, 344, 348, 384, 388, 426, 432, 472, 475, 476, 480, 528, 531, 581, 584, 631, 636, 638, 641, 697, 700
Offset: 1

Views

Author

Keywords

A030754 Numbers k such that A030747(k) = 2.

Original entry on oeis.org

4, 9, 10, 22, 73, 76, 93, 110, 112, 132, 154, 175, 176, 180, 199, 209, 236, 240, 273, 304, 305, 309, 347, 382, 387, 421, 425, 428, 431, 470, 479, 521, 525, 530, 583, 635, 640, 688, 693, 695, 699, 757, 762, 822, 829, 877, 886, 891
Offset: 1

Views

Author

Keywords

Crossrefs

Cf. A030747.

A030755 Numbers k such that A030747(k) = 3.

Original entry on oeis.org

5, 7, 14, 21, 37, 48, 61, 90, 111, 129, 179, 202, 205, 208, 228, 233, 239, 269, 272, 308, 340, 341, 343, 346, 386, 430, 465, 473, 478, 519, 524, 529, 576, 579, 582, 639, 698, 753, 761, 814, 821, 824, 828, 890, 899
Offset: 1

Views

Author

Keywords

Extensions

Corrected by Franklin T. Adams-Watters, Oct 25 2006

A030756 Numbers k such that A030747(k)=4.

Original entry on oeis.org

1, 11, 28, 38, 60, 88, 91, 107, 109, 131, 153, 206, 267, 302, 379, 429, 477, 518, 522, 527, 570, 572, 580, 633, 637, 692, 747, 755, 760, 826, 889, 892, 897, 957, 971, 1021, 1035, 1041, 1043, 1046, 1114, 1115, 1203, 1207, 1291, 1362, 1369, 1382, 1467, 1469
Offset: 1

Views

Author

Keywords

Extensions

More terms from Sean A. Irvine, Apr 08 2020

A030748 The second list after the following procedure: starting with a list [4] and an empty list, repeatedly add the distinct values already in both lists in ascending order to the second list and add the corresponding frequencies of those values to the first list.

Original entry on oeis.org

4, 1, 4, 1, 2, 4, 1, 2, 3, 4, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 1, 2, 3, 4, 5, 6, 7, 8, 9
Offset: 1

Views

Author

Keywords

Crossrefs

The 1st list is A030747.

Extensions

Name revised in line with A030778 by Peter Munn, Oct 09 2022
Showing 1-9 of 9 results.