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A050350 Number of factorizations into distinct factors with 3 levels of parentheses indexed by prime signatures. A050349(A025487). 6
1, 1, 1, 5, 5, 15, 11, 45, 35, 25, 65, 130, 145, 60, 240, 351, 520, 141, 810, 775, 926, 315, 1037, 1721, 321, 2532, 3302, 2392, 1640, 3951, 5310, 742, 7500, 12498, 6043, 6915, 13795, 4970, 15624, 1688, 16198, 21435, 10352, 16733, 43404, 15035, 25967 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..47.

CROSSREFS

Sequence in context: A247940 A061200 A255304 * A196060 A147266 A147152

Adjacent sequences:  A050347 A050348 A050349 * A050351 A050352 A050353

KEYWORD

nonn

AUTHOR

Christian G. Bower, Oct 15 1999

STATUS

approved

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Last modified December 6 16:24 EST 2019. Contains 329808 sequences. (Running on oeis4.)