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URL: https://oeis.org/A276127

⇱ A276127 - OEIS

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A276127

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

2

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

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OFFSET

1,2

LINKS

Peter Kagey, Table of n, a(n) for n = 1..10000

FORMULA

a(1) = 1

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

EXAMPLE

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

PROG

(Haskell)

a276127 1 = 1

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

CROSSREFS

Cf. A001414, A064413.

Sequence in context: A284561 A061728 A332017 * A182115 A362962 A065182

Adjacent sequences: A276124 A276125 A276126 * A276128 A276129 A276130

KEYWORD

nonn,easy

AUTHOR

Alec Jones, Sep 05 2016

STATUS

approved