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A118970
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3*binomial(5n+2,n)/(4n+3).
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2
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1, 3, 18, 136, 1155, 10530, 100688, 996336, 10116873, 104819165, 1103722620, 11777187240, 127067830773, 1383914371728, 15194457001440, 167996704221280, 1868870731122405, 20903064321375315, 234927317665726686
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| A quadrisection of A118968.
Convolved with A118969 (1, 2, 11, 80, 665,...) = A002294: (1, 5, 35, 285, 2530,...) - Gary W. Adamson, Nov 07 2011
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CROSSREFS
| Cf. A118969, A002294
Sequence in context: A005159 A151383 A177406 * A003122 A039618 A183363
Adjacent sequences: A118967 A118968 A118969 * A118971 A118972 A118973
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KEYWORD
| easy,nonn
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AUTHOR
| Paul Barry (pbarry(AT)wit.ie), May 07 2006
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