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A026073
T(2n,n), where T is the array defined in A024996.
0
1, 2, 5, 24, 133, 736, 4135, 23452, 134043, 770864, 4455462, 25859380, 150615223, 879876040, 5153445895, 30251941860, 177938418225, 1048452751872, 6187400646130, 36566048896896, 216370786646054
OFFSET
0,2
CROSSREFS
Bisection of A026078.
Sequence in context: A194349 A208969 A020022 * A054131 A086635 A020124
KEYWORD
nonn
STATUS
approved