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A045767 Number of prime factors of triple factorials n!!! (A007661), with multiplicity. +0
1
0, 1, 1, 2, 2, 3, 3, 5, 5, 5, 6, 8, 6, 8, 10, 10, 9, 13, 11, 12, 15, 13, 13, 19, 15, 15, 22, 18, 16, 25, 19, 21, 27, 21, 23, 31, 22, 25, 33, 26, 26, 36, 27, 29, 39, 29, 30, 44, 31, 33, 46, 34, 34, 50, 36, 38, 52, 38, 39, 56, 39, 41, 59, 45, 43, 62, 46, 46, 64, 49, 47, 69, 50, 49 (list; graph; listen)
OFFSET

1,4

CROSSREFS

Sequence in context: A072729 A057872 A059974 this_sequence A108221 A082524 A099961

Adjacent sequences: A045764 A045765 A045766 this_sequence A045768 A045769 A045770

KEYWORD

nonn,easy

AUTHOR

Jeff Burch (gburch(AT)erols.com)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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