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 A143420 Row sums of triangle A143419. 0
 1, 8, 55, 370, 2520, 15272, 123151 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,2 COMMENTS Each term in the sequence is a sum of tetrahedral numbers. LINKS FORMULA Row sums of triangle A143419 EXAMPLE a(5) = 370 = (20 + 165 + 165 + 20) = C(6,3) + C(11,3) + C(11,8)+ C(6,3). CROSSREFS Cf. A143419. Sequence in context: A110184 A013698 A154245 * A075734 A033890 A010924 Adjacent sequences:  A143417 A143418 A143419 * A143421 A143422 A143423 KEYWORD nonn AUTHOR Gary W. Adamson, Aug 14 2008 STATUS approved

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Last modified May 27 07:44 EDT 2019. Contains 323599 sequences. (Running on oeis4.)