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A024960
s(n+3)/4, where s is A024959.
0
1, 2, 5, 12, 28, 66, 172, 440, 1108, 2784, 7552, 20040, 52336, 136896, 374688, 1013056, 2710016, 7243104, 20078784, 55031040, 149414144, 405759232, 1130565632, 3125798656, 8582582272, 23543099392, 66051398144, 183922571264, 508945206272
OFFSET
1,2
CROSSREFS
Sequence in context: A239333 A255115 A166297 * A291234 A346051 A362893
KEYWORD
nonn
STATUS
approved