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 A111711 Leading column of triangle mentioned in A111710. 4
 1, 2, 5, 8, 14, 19, 28, 35, 47, 56, 71, 82, 100, 113, 134, 149, 173, 190, 217, 236, 266, 287, 320, 343, 379, 404, 443, 470, 512, 541, 586, 617, 665, 698, 749, 784, 838, 875, 932, 971, 1031, 1072, 1135, 1178, 1244, 1289, 1358, 1405, 1477, 1526, 1601, 1652 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Also partial sums of A257143. - Reinhard Zumkeller, Apr 17 2015 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 FORMULA a(1)=1, a(2n) = a(2n-1)+2n-1, a(2n+1)=a(2n)+3n; a(n) = A117110(n-1)+1. - Franklin T. Adams-Watters, May 01 2006 PROG (Haskell) a111711 n = a111711_list !! (n-1) a111711_list = 1 : zipWith (+) a111711_list a080512_list -- Reinhard Zumkeller, Apr 17 2015 CROSSREFS Cf. A111710, A111712, A080512, A257143. Sequence in context: A190105 A295400 A266287 * A095348 A215725 A022907 Adjacent sequences:  A111708 A111709 A111710 * A111712 A111713 A111714 KEYWORD easy,nonn AUTHOR Amarnath Murthy, Aug 24 2005 EXTENSIONS More terms from Franklin T. Adams-Watters, May 01 2006 STATUS approved

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Last modified December 12 01:57 EST 2019. Contains 329948 sequences. (Running on oeis4.)