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 A249059 Row sums of the triangular array at A249057. 4
 1, 5, 10, 40, 110, 430, 1420, 5720, 21340, 89980, 367400, 1627120, 7138120, 33172040, 154520080, 751616800, 3687498320, 18719834320, 96157299040, 507993654080, 2719611532000, 14911459229920, 82901747529920, 470599687507840, 2708946870815680 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Clark Kimberling, Table of n, a(n) for n = 0..100 EXAMPLE First 3 rows from A249057: 1 4    1 5    4    1, so that a(0) = 1, a(1) = 5, a(2) = 10. MATHEMATICA z = 30; p[x_, n_] := x + (n + 2)/p[x, n - 1]; p[x_, 1] = 1; t = Table[Factor[p[x, n]], {n, 1, z}]; u = Numerator[t]; v1 = Flatten[CoefficientList[u, x]]; (* A249057  *) v2 = u /. x -> 1  (* A249059 *) v3 = u /. x -> 0  (* A249060 *) CROSSREFS Cf. A249057, A249060. Sequence in context: A191580 A179306 A117865 * A163305 A001692 A038070 Adjacent sequences:  A249056 A249057 A249058 * A249060 A249061 A249062 KEYWORD nonn,easy AUTHOR Clark Kimberling, Oct 20 2014 STATUS approved

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Last modified December 15 20:10 EST 2018. Contains 318154 sequences. (Running on oeis4.)