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A015062
q-Catalan numbers (binomial version) for q=-7.
1
1, 1, 50, 119757, 14094337902, 81246911474597002, 22950408766815313800875300, 317662868501471575977731478166067621, 215446318838899436153587239312460946873230930006
OFFSET
0,3
FORMULA
{1 / (n+1)_q} {2 n choose n}_q.
CROSSREFS
Sequence in context: A146518 A229670 A152514 * A015038 A152515 A111402
KEYWORD
nonn,easy
STATUS
approved