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”).

A357237
Number of compositions (ordered partitions) of n into distinct parts of the form 2^j - 1.
0
1, 1, 0, 1, 2, 0, 0, 1, 2, 0, 2, 6, 0, 0, 0, 1, 2, 0, 2, 6, 0, 0, 2, 6, 0, 6, 24, 0, 0, 0, 0, 1, 2, 0, 2, 6, 0, 0, 2, 6, 0, 6, 24, 0, 0, 0, 2, 6, 0, 6, 24, 0, 0, 6, 24, 0, 24, 120, 0, 0, 0, 0, 0, 1, 2, 0, 2, 6, 0, 0, 2, 6, 0, 6, 24, 0, 0, 0, 2, 6, 0, 6, 24, 0, 0, 6, 24
OFFSET
0,5
COMMENTS
Let b(n) the number of parts in partitions of n into distinct parts of the form 2^j-1, then a(n) = factorial(b(n)).
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Sep 19 2022
STATUS
approved