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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A135960 Indices where records occur in A134852.

Original entry on oeis.org

1, 2, 4, 14, 37, 59, 144, 173
Offset: 1

Views

Author

Artur Jasinski, Dec 08 2007

Keywords

Crossrefs

Cf. A000045, A001605, A050937, A075737, A090819, A134787, A134851, A134852, A135953, A135954, A135955, A135956, A135957, A135958, A135959.

Extensions

a(7)-a(8) from Amiram Eldar, Sep 01 2019 (calculated from the b-file at A134852)

A135970 Fibonacci(Mersenne primes): a(n) = Fibonacci(A000668(n)).

Original entry on oeis.org

2, 13, 1346269, 155576970220531065681649693
Offset: 1

Views

Author

Artur Jasinski, Dec 09 2007

Keywords

Comments

This sequence is a subsequence of A101342. The next term, a(5), has 1712 digits.

Crossrefs

Cf. A000045, A000668, A001605, A050937, A075737, A090819, A134787, A134851, A134852, A135953, A135954, A135955, A135956, A135957, A135958, A135959, A135968, A135969, A101342.

Programs

  • Mathematica
    k = {}; Do[If[PrimeQ[2^n - 1], AppendTo[k, Fibonacci[2^n - 1]]], {n, 1, 15}]; k
Fibonacci/@Select[Table[2^Prime[n]-1,{n,5}],PrimeQ] (* Harvey P. Dale, May 06 2018 *)
Previous Showing 21-22 of 22 results.

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

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