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.

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A214440 Indices n for which A046825(n) is not larger than A046825(n-1).

Original entry on oeis.org

4, 8, 15, 16, 20, 24, 32, 34, 44, 48, 50, 56, 64, 68, 74, 75, 76, 80, 84, 85, 92, 95, 98, 104, 114, 116, 128, 132, 140, 144, 146, 152, 154, 160, 164, 170, 176, 184, 186, 194, 200, 202, 204, 208, 212, 216, 218, 220, 224, 234, 236, 244, 248, 256, 258, 260, 264, 266, 272
Offset: 1

Views

Author

M. F. Hasler, Jul 17 2012

Keywords

Crossrefs

See A214432 for the indices where A046825 sets a new record.

Programs

  • PARI
    m=0;for(n=1,9999,(m+0>=m=A046825(n))&print1(n","))

A214453 Odd indices n for which A046825(n) is not larger than A046825(n-1).

Original entry on oeis.org

15, 75, 85, 95, 299, 375, 377, 425, 465, 475, 485, 747, 901, 1057, 1241, 1271, 1875, 2125, 2375, 2425, 2475, 2485, 2495, 2597, 3473, 3955, 4015, 4531, 5055, 6877, 9039, 9375, 10519, 10553, 10625, 10933, 11397, 11875, 12125, 12375, 12425, 12475, 14415, 14659, 15763, 16485, 17869
Offset: 1

Views

Author

M. F. Hasler, Jul 19 2012

Keywords

Comments

Most terms of A214440 are even, which makes it interesting to look at the subsequence of odd terms.

Crossrefs

See A214432 for the indices where A046825 sets a new record.

Programs

  • PARI
    t=S=1; for(n=0,99999, t+0>=(t=numerator(S)) & bittest(n,0) & print1(n,","); S=S/2/(n+1)*(n+2)+1)
Showing 1-2 of 2 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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