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A027287
Self-convolution of array T given by A026009.
1
1, 2, 6, 15, 54, 118, 471, 973, 4128, 8262, 36481, 71534, 324876, 627926, 2911923, 5568348, 26241376, 49767432, 237550401, 447567059, 2158650078, 4045351674, 19679880649, 36716551814, 179920446576, 334415846660
OFFSET
0,2
CROSSREFS
Sequence in context: A256982 A372853 A047870 * A192186 A243550 A354758
KEYWORD
nonn
STATUS
approved