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A152542
Column 0 of triangle A152541.
3
1, 2, 16, 230, 4704, 124388, 4029888, 154462924, 6834212520, 342732052968, 19208758459008, 1189732051180016, 80692431912452864, 5947714658316493728, 473385135814528562176, 40461455930940173038416
OFFSET
0,2
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Dec 12 2008
STATUS
approved