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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A102160 Iccanobirt primes (10 of 15): Prime numbers in A102120.

Original entry on oeis.org

2, 7, 31, 977, 8311, 6303211, 376085401, 243108206127601, 797617957269902814324298809066990611, 13986539709338184569448604343396198783632139863691161608206506541
Offset: 1

Views

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

Comments

Next term is too large to include.
The next term has 407 digits. - Harvey P. Dale, Oct 30 2017

Crossrefs

Cf. A000040, A102120, A102140, A102151-A102165.

Programs

  • Mathematica
    nxt[{a_,b_,c_}]:={b,c,IntegerReverse[c+IntegerReverse[b]+a]}; Select[ NestList[nxt,{0,0,1},200][[All,1]],PrimeQ] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Oct 30 2017 *)

Formula

a(n) = A102120(A102140(n)).

Extensions

Offset changed to 1 by Jinyuan Wang, Aug 14 2021
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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