|
|
A301702
|
|
a(n) = [x^n] Product_{k>=0} 1/(1 - x^(2^k))^n.
|
|
1
|
|
|
1, 1, 5, 19, 89, 401, 1877, 8821, 41969, 200899, 967605, 4681491, 22739705, 110816343, 541561333, 2653061819, 13024808161, 64063300481, 315624211781, 1557318893473, 7694243895289, 38060959885345, 188482408625373, 934323819631893, 4635781966972721, 23020536772620401
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
COMMENTS
|
Number of binary partitions of n into parts of n kinds.
|
|
LINKS
|
|
|
MATHEMATICA
|
Table[SeriesCoefficient[Product[1/(1 - x^(2^k))^n, {k, 0, n}], {x, 0, n}], {n, 0, 25}]
Table[SeriesCoefficient[Product[(1 + x^(2^k))^(n (k + 1)), {k, 0, n}], {x, 0, n}], {n, 0, 25}]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|