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A054093
T(n,n-1), array T as in A054090.
0
1, 2, 2, 8, 24, 106, 546, 3368, 24032, 195170, 1777650, 17950552, 199059672, 2405063018, 31448531954, 442501797656, 6666753146496, 107081325959938, 1826636018849442
OFFSET
1,2
CROSSREFS
Sequence in context: A290613 A113464 A353252 * A098557 A354066 A372795
KEYWORD
nonn
STATUS
approved