A050362 - OEIS

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A050362

Number of factorizations into distinct prime powers >1 indexed by prime signatures.

3

1, 1, 1, 1, 2, 1, 2, 2, 1, 3, 1, 2, 1, 4, 2, 3, 2, 5, 2, 1, 4, 1, 4, 2, 6, 3, 2, 5, 1, 4, 3, 8, 4, 2, 6, 2, 6, 1, 4, 10, 4, 5, 1, 4, 3, 8, 2, 8, 2, 5, 12, 4, 6, 1, 2, 6, 4, 10, 3, 10, 2, 6, 15, 6, 8, 1, 2, 8, 4, 5, 12, 1, 4, 4, 12, 3, 4, 8, 9, 18, 8, 10, 2, 3, 10, 4, 6, 15, 2, 6, 5, 16, 1, 4, 4, 10, 12

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OFFSET

1,5

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000 (terms 1..300 from R. J. Mathar)

FORMULA

a(n) = A050361(A025487(n)).

MAPLE

A050362 := proc(n)

A050361(A025487(n)) ;

end proc: # R. J. Mathar, May 26 2017

CROSSREFS

Cf. A025487, A050361.

Sequence in context: A271852 A224362 A350560 * A095686 A105258 A329173

Adjacent sequences: A050359 A050360 A050361 * A050363 A050364 A050365

KEYWORD

nonn

AUTHOR

Christian G. Bower, Oct 15 1999

EXTENSIONS

More terms from Naohiro Nomoto, Nov 07 2001

STATUS

approved