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A027174
a(n) = A027170(2n, n-2).
0
9, 58, 264, 1106, 4495, 18014, 71652, 283760, 1120806, 4419928, 17413572, 68569666, 269941451, 1062631046, 4183370636, 16471711736, 64870158866, 255541666976, 1006930883396, 3968854010936, 15648092510618, 61714841143568
OFFSET
2,1
CROSSREFS
Sequence in context: A343133 A044147 A044528 * A304370 A099624 A018218
KEYWORD
nonn
STATUS
approved