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A050331 Number of factorizations into numbers with an odd number of prime factors indexed by prime signatures. A050330(A025487). 1
1, 1, 1, 1, 2, 2, 2, 3, 2, 3, 3, 4, 4, 4, 5, 6, 6, 5, 8, 7, 8, 5, 9, 10, 6, 11, 13, 11, 9, 13, 14, 8, 16, 20, 14, 17, 20, 15, 21, 10, 22, 22, 20, 21, 31, 19, 27, 29, 26, 29, 12, 37, 30, 12, 36, 32, 46, 24, 42, 41, 44, 40, 15, 58, 40, 27, 61, 48, 49, 66, 31, 43, 63, 64, 56, 70, 68 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..77.

CROSSREFS

Sequence in context: A137734 A182210 A078705 * A259194 A194344 A128435

Adjacent sequences:  A050328 A050329 A050330 * A050332 A050333 A050334

KEYWORD

nonn

AUTHOR

Christian G. Bower, Oct 15 1999

STATUS

approved

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Last modified September 20 12:43 EDT 2019. Contains 327238 sequences. (Running on oeis4.)