[go: up one dir, main page]

login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A050329
Number of ordered factorizations into squarefree factors indexed by prime signatures.
2
1, 1, 1, 3, 1, 5, 1, 7, 13, 1, 13, 9, 31, 1, 25, 11, 57, 1, 41, 101, 13, 75, 63, 91, 1, 61, 239, 15, 233, 129, 133, 1, 85, 469, 17, 535, 231, 409, 183, 1, 705, 113, 919, 321, 815, 19, 1029, 377, 1177, 241, 1, 1671, 145, 541, 2593, 681, 1301, 21, 1763, 575, 2741
OFFSET
1,4
LINKS
FORMULA
a(n) = A050328(A025487(n)).
CROSSREFS
Sequence in context: A318827 A339236 A029669 * A147005 A254577 A051707
KEYWORD
nonn
AUTHOR
Christian G. Bower, Oct 15 1999
STATUS
approved