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

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

1,2

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