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A027092
a(n) = A027082(n, 2n-5).
0
1, 3, 9, 31, 102, 328, 1035, 3217, 9880, 30062, 90803, 272697, 815228, 2428298, 7212179, 21370921, 63207913, 186668355, 550617011, 1622604097, 4777983482, 14060981252, 41360234037, 121616984851, 357510486913, 1050750138523
OFFSET
3,2
CROSSREFS
Sequence in context: A148959 A148960 A027029 * A148961 A148962 A148963
KEYWORD
nonn
STATUS
approved