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A088794
Coefficient of x^n in A(x)^(2n) is A004123(n); self-convolution is A088222.
0
1, 1, 1, 4, 30, 305, 3905, 59828, 1063728, 21497921, 486476766, 12184618776, 334684804952, 10005219881472, 323438539163521, 11244331792094312, 418375698771595037, 16590419690069321454, 698526596162530976512
OFFSET
0,4
CROSSREFS
Sequence in context: A307905 A292629 A362700 * A239841 A145348 A052574
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Oct 23 2003
STATUS
approved