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 A151714 When A151552 is written as a triangle the rows converge to this. 1
 1, 1, 2, 2, 2, 3, 4, 3, 2, 3, 4, 4, 5, 7, 7, 4, 2, 3, 4, 4, 5, 7, 7, 5, 5, 7, 8, 9, 12, 14, 11, 5, 2, 3, 4, 4, 5, 7, 7, 5, 5, 7, 8, 9, 12, 14, 11, 6, 5, 7, 8, 9, 12, 14, 12, 10, 12, 15, 17, 21, 26, 25, 16, 6, 2, 3, 4, 4, 5, 7, 7, 5, 5, 7, 8, 9, 12, 14, 11, 6, 5, 7, 8, 9, 12, 14, 12, 10, 12, 15, 17, 21, 26 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS FORMULA a(n)=A151553(n-1), n>0. [From R. J. Mathar, Jul 07 2009] EXAMPLE Contribution from Omar E. Pol, Jun 09 2009: (Start) Triangle begings: 1; 1; 2,2; 2,3,4,3; 2,3,4,4,5,7,7,4; 2,3,4,4,5,7,7,5,5,7,8,9,12,14,11,5; 2,3,4,4,5,7,7,5,5,7,8,9,12,14,11,6,5,7,8,9,12,14,12,10,12,15,17,21,26,25,16,6; 2,3,4,4,5,7,7,5,5,7,8,9,12,14,11,6,5,7,8,9,12,14,12,10,12,15,17,21,26,... (End) MAPLE G := 1 + x*(1+x)*mul( 1 + x^(2^n-1) + x^(2^n), n=1..20); CROSSREFS Cf. A151552m A151553, A000079. Sequence in context: A286614 A023508 A151553 * A039644 A281945 A163107 Adjacent sequences:  A151711 A151712 A151713 * A151715 A151716 A151717 KEYWORD nonn AUTHOR N. J. A. Sloane, Jun 08 2009 STATUS approved

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