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 A100937 Main diagonal of symmetric square array A100936. 2
 1, 3, 14, 76, 435, 2577, 15678, 97272, 612126, 3891890, 24933292, 160663328, 1040074684, 6759228932, 44075916696, 288289595968, 1890894150707, 12434303045721, 81960791460442, 541428229233012, 3583843659376257 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS FORMULA a(n) = Sum_{k=0..n} C(n, k)^2*A051162(k). EXAMPLE a(3) = 76 = 1*1 + 3^2*2 + 3^2*5 + 1*12 = Sum_{k=0..3} C(3,k)^2*A051163(k). a(4) = 435 = 1*1 + 4^2*2 + 6^2*5 + 4^2*12 + 1*30 = Sum_{k=0..4} C(4,k)^2*A051163(k). PROG (PARI) CROSSREFS Cf. A051163, A100936. Sequence in context: A200718 A063016 A133798 * A223026 A198702 A198621 Adjacent sequences:  A100934 A100935 A100936 * A100938 A100939 A100940 KEYWORD nonn AUTHOR Paul D. Hanna, Nov 23 2004 STATUS approved

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Last modified June 19 10:50 EDT 2013. Contains 226404 sequences.