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.

A276127 a(n) = p_1 + p_2 + ... + p_k, where p_1*p_2*...*p_k is the prime factorization of A064413(n).

Original entry on oeis.org

1, 2, 4, 5, 3, 6, 7, 6, 7, 5, 8, 8, 9, 7, 10, 9, 8, 9, 13, 11, 14, 9, 10, 10, 12, 11, 15, 13, 16, 10, 10, 19, 17, 20, 12, 21, 19, 22, 11, 11, 15, 25, 23, 26, 11, 12, 17, 11, 13, 14, 13, 12, 16, 18, 14, 31, 29
Offset: 1

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Author

Alec Jones, Sep 05 2016

Keywords

Examples

			For instance, a(4) = 5 because A064413(4) = 6, and 6 = 2*3; 2 + 3 = 5.
		

Crossrefs

Programs

  • Haskell
    a276127 1 = 1
    a276127 n = a001414 $ a064413 n -- Peter Kagey, Sep 15 2016

Formula

a(1) = 1
a(n) = A001414(A064413(n)) for n > 1. - Peter Kagey, Sep 15 2016