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A178888
Irregular table A035206(n,k)*A096162(n,k), read by rows.
5
1, 2, 2, 3, 6, 6, 4, 12, 12, 24, 24, 5, 20, 20, 60, 60, 120, 120, 6, 30, 30, 30, 120, 120, 120, 360, 360, 720, 720, 7, 42, 42, 42, 210, 210, 210, 210, 840, 840, 840, 2520, 2520, 5040, 5040, 8, 56, 56, 56, 56, 336, 336, 336, 336, 336, 1680, 1680, 1680, 1680, 1680, 6720, 6720, 6720, 20160, 20160
OFFSET
1,2
EXAMPLE
A035206 begins 1 2 1 3 6 1 4 12 6 12 1 ...
A096162 begins 1 1 2 1 1 6 1 1 2 2 24 ...
therefore
A178888 begins 1 2 2 3 6 6 4 12 12 24 24 ...
with row sums 1,4,15,76,405,2616,18613,151432,1367649...A178887
CROSSREFS
Cf. A035206, A096162, A178887 (row sums).
Sequence in context: A290734 A093919 A179661 * A068424 A298484 A139359
KEYWORD
easy,nonn,tabf
AUTHOR
Alford Arnold, Jun 21 2010
STATUS
approved