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

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More terms from Sean A. Irvine, Apr 08 2020

A030790 a(n)=least k such that s(k)=n, where s=A030787.

Original entry on oeis.org

2, 3, 5, 1, 11, 13, 19, 22, 30, 36, 58, 39, 59, 50, 74, 90, 62, 150, 77, 132, 151, 94, 177, 152, 113, 178, 133, 209, 155, 270, 240, 181, 381, 273, 308, 210, 346, 384, 473, 241, 428, 386, 274, 430, 431, 310, 755, 580, 348, 479, 694, 388
Offset: 1

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A030791 Record values in A030787.

Original entry on oeis.org

4, 5, 6, 7, 8, 9, 10, 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
Offset: 1

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More terms and simpler title from Sean A. Irvine, Apr 09 2020

A030792 Positions of record values in A030787.

Original entry on oeis.org

1, 11, 13, 19, 22, 30, 36, 39, 50, 62, 77, 94, 113, 133, 155, 181, 210, 241, 274, 310, 348, 388, 432, 480, 531, 584, 641, 700, 763, 830, 901, 974, 1050, 1128, 1210, 1294, 1385, 1480, 1577, 1676, 1777, 1883, 1994, 2109, 2229, 2352, 2478, 2608, 2741, 2878, 3019
Offset: 1

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More terms and simpler title from Sean A. Irvine, Apr 09 2020

A030793 s(k)=1, where s=A030787.

Original entry on oeis.org

2, 4, 6, 12, 23, 24, 31, 40, 41, 51, 63, 65, 78, 80, 95, 114, 134, 137, 156, 159, 164, 182, 185, 188, 211, 214, 242, 245, 275, 278, 311, 315, 349, 353, 389, 395, 433, 437, 438, 441, 481, 484, 532, 535, 585, 588, 590, 595, 642, 645
Offset: 1

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A030794 s(n) = 2, where s = A030787.

Original entry on oeis.org

3, 9, 10, 17, 64, 67, 79, 96, 98, 115, 135, 157, 161, 162, 183, 193, 212, 216, 243, 276, 280, 281, 312, 350, 355, 390, 393, 396, 400, 434, 443, 482, 487, 491, 533, 586, 591, 643, 647, 649, 654, 702, 707, 765, 772, 832, 836, 841
Offset: 1

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Cf. A030787.

A030795 Numbers k such that A030787(k) = 3.

Original entry on oeis.org

5, 7, 14, 18, 33, 42, 52, 82, 97, 118, 158, 184, 187, 190, 213, 219, 224, 244, 247, 277, 313, 316, 318, 319, 351, 391, 435, 440, 448, 483, 488, 493, 534, 537, 540, 587, 644, 703, 711, 766, 770, 773, 780, 833, 842
Offset: 1

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Cf. A030787.

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

A030796 Numbers k such that A030787(k)=4.

Original entry on oeis.org

1, 8, 25, 32, 53, 81, 84, 99, 101, 116, 136, 186, 249, 283, 358, 392, 436, 485, 490, 494, 536, 544, 546, 589, 593, 650, 704, 709, 717, 768, 835, 840, 843, 905, 919, 979, 982, 984, 990, 1004, 1064, 1065, 1132, 1136, 1214, 1298, 1311, 1318, 1389, 1396, 1397
Offset: 1

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More terms from Sean A. Irvine, Apr 09 2020

A030788 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 descending order to the second list and add the corresponding frequencies of those values to the first list.

Original entry on oeis.org

4, 4, 1, 4, 2, 1, 4, 3, 2, 1, 5, 4, 3, 2, 1, 6, 5, 4, 3, 2, 1, 8, 7, 6, 5, 4, 3, 2, 1, 9, 8, 7, 6, 5, 4, 3, 2, 1, 12, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 14, 12, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 17, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 19, 17, 15, 14, 13, 12
Offset: 1

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The 1st list is A030787.

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