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URL: https://oeis.org/A047768

⇱ A047768 - OEIS

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A047768
a(n) = A047766(6n+2).
1
0, 0, 1, 5, 26, 133, 708, 3861, 21604, 123266, 715221, 4206956, 25032840, 150413348, 911379384, 5562367173, 34164355848, 211015212580, 1309815397995, 8166460799805, 51120054233490, 321156223592865, 2024257417812240, 12797201858645100
OFFSET
0,4
COMMENTS
Is this the same as A047755? - R. J. Mathar, Oct 18 2008
CROSSREFS
Sequence in context: A047770 A047757 A047755 * A375177 A022032 A255118
KEYWORD
nonn
STATUS
approved