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A026897
T(2n,n+4), T given by A026780.
0
1, 11, 80, 489, 2732, 14512, 74888, 380329, 1916709, 9637687, 48528434, 245289395, 1246499970, 6374296278, 32816505566, 170106486358, 887697088316, 4662338571684, 24636365887246, 130918389450108, 699335986465354
OFFSET
4,2
CROSSREFS
Sequence in context: A126506 A159663 A227244 * A021024 A127021 A326243
KEYWORD
nonn
STATUS
approved