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A054139
T(2n,n), array T as in A054134.
0
1, 4, 18, 97, 570, 3489, 21810, 138044, 881098, 5658793, 36520068, 236619717, 1538134272, 10026366588, 65513185896, 428957025672
OFFSET
0,2
CROSSREFS
Sequence in context: A234854 A334735 A086681 * A370569 A020072 A020027
KEYWORD
nonn
STATUS
approved