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 A243235 Number of isoscent sequences of length n with exactly nine ascents. 2
 5, 7894, 1224994, 78795771, 3067107659, 85773445272, 1895106633310, 35082703708444, 565885383903338, 8174846220800924, 107914203931103343, 1321652161255079196, 15194953405886326264, 165524034548480907270, 1721272958146506221402, 17191653626679380069342 (list; graph; refs; listen; history; text; internal format)
 OFFSET 14,1 LINKS Joerg Arndt and Alois P. Heinz, Table of n, a(n) for n = 14..100 MAPLE b:= proc(n, i, t) option remember; `if`(n<1, 1, expand(add( `if`(j>i, x, 1) *b(n-1, j, t+`if`(j=i, 1, 0)), j=0..t+1))) end: a:= n-> coeff(b(n-1, 0\$2), x, 9): seq(a(n), n=14..35); CROSSREFS Column k=9 of A242351. Sequence in context: A117711 A203689 A116140 * A145530 A067816 A076629 Adjacent sequences: A243232 A243233 A243234 * A243236 A243237 A243238 KEYWORD nonn AUTHOR Joerg Arndt and Alois P. Heinz, Jun 01 2014 STATUS approved

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Last modified May 21 15:47 EDT 2024. Contains 372738 sequences. (Running on oeis4.)