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 A128514 Triangle, Pell sequence in every column. 0
 1, 2, 1, 5, 2, 1, 12, 5, 2, 1, 29, 12, 5, 2, 1, 70, 29, 12, 5, 2, 1, 169, 70, 29, 12, 5, 2, 1, 408, 169, 70, 29, 12, 5, 2, 1, 985, 408, 169, 70, 29, 12, 5, 2, 1, 2378, 985, 408, 169, 70, 29, 12, 5, 2, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row sums = A048739 starting (1, 3, 8, 20, 49, 119,...) Riordan array (1/(1-2x-x^2),x). [From Philippe Deléham, Apr 23 2009] LINKS FORMULA A000129 in every column: (1, 2, 5, 12, 29,...) EXAMPLE First few rows of the triangle are: 1; 2, 1; 5, 2, 1; 12, 5, 2, 1; 29, 12, 5, 2, 1; 70, 29, 12, 5, 2, 1; ... CROSSREFS Cf. A000129, A048739. Sequence in context: A105084 A126125 A221876 * A126075 A134032 A137151 Adjacent sequences:  A128511 A128512 A128513 * A128515 A128516 A128517 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Mar 05 2007 STATUS approved

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Last modified January 20 14:40 EST 2019. Contains 319333 sequences. (Running on oeis4.)