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.

A372044 Records in A030000.

Original entry on oeis.org

10, 15, 40, 43, 52, 58, 66, 111, 114, 136, 170, 171, 196, 215, 271, 286, 383, 519, 571, 611, 756, 758, 809, 1651, 1889, 2234, 2560, 2750, 3153, 5078, 5126, 5876, 6075, 6382, 6472, 8531, 8876, 9112, 9598, 14847, 17085, 17300, 17700, 20964, 26478, 28019, 28459, 28964, 32407, 32804
Offset: 1

Views

Author

Paolo Xausa, Apr 17 2024

Keywords

Examples

			From _David A. Corneth_, Apr 17 2024: (Start)
10 is in the sequence as A030000(0) = 10.
15 is the next term after 10 as the next record in A030000 occurs at k = 7 and A030000(7) = 15. (End)
		

Crossrefs

Programs

  • Mathematica
    d2k[k_] := d2k[k] = IntegerString[2^k];
    A030000[n_] := Block[{d = IntegerString[n], k = -1}, While[StringFreeQ[d2k[++k], d]]; k];
    Block[{upto = 10000, n = -1, a, r = -1}, Reap[While[++n <= upto, If[(a = A030000[n]) > r, Sow[r = a]]]][[2,1]]]
  • PARI
    \\ See PARI link

Extensions

More terms from David A. Corneth, Apr 17 2024