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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A295562 List of numbers whose middle Fibonomial coefficient (2n,n)_F is prime to 105.

Original entry on oeis.org

1, 1312, 3256, 3257, 3936, 3937, 4000, 4001, 4032, 38880, 38881, 39000, 39001, 19928280, 19928281, 21975136, 21975137, 21975305, 21975312, 22054032
Offset: 1

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Author

N. J. A. Sloane, Nov 28 2017

Keywords

Comments

From Charlie Neder, Mar 04 2019: (Start)
For the middle Fibonomial coefficient (2n,n)_F to be coprime to a prime p, we must have that the integral part of n/A001177(p) has its base-p digits all < p/2 and its fractional part is < 1/2.
Next term > 10^8. (End)

Links

Crossrefs

Cf. A003267, A030979.
Cf. A037461, A037543, A005836.

Formula

Numbers k congruent to 0 or 1 modulo 8 such that floor(k/4) is in A005836, k is in A037543, and floor(k/8) is in A037461. - Charlie Neder, Mar 04 2019

Extensions

a(10)-a(20) from Charlie Neder, Mar 04 2019
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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