cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A244304 Number of standard Young tableaux with n cells such that the lengths of the first and the last row differ by 10.

Original entry on oeis.org

11, 66, 923, 6761, 59631, 430135, 3286934, 22973870, 166443706, 1140859011, 8005160811, 54582972124, 377341672273, 2571480311931, 17687177703846, 120864485062762, 832211596826779, 5716894541334650, 39541329587796481, 273544962791156596, 1904469339140619197
Offset: 12

Views

Author

Joerg Arndt and Alois P. Heinz, Jun 25 2014

Keywords

Comments

Also the number of ballot sequences of length n such that the multiplicities of the largest and the smallest value differ by 10.

Crossrefs

Column k=10 of A238707.

Programs

  • Maple
    h:= proc(l) local n; n:=nops(l); add(i, i=l)!/mul(mul(1+l[i]-j+
        add(`if`(l[k]>=j, 1, 0), k=i+1..n), j=1..l[i]), i=1..n) end:
    g:= proc(n, i, l) local j; `if`(n=0 or i<1, 0, `if`(l<>[] and
          l[1]-i=10, `if`(irem(n, i, 'j')=0, h([l[], i$j]), 0),
          add(g(n-i*j, i-1, [l[], i$j]), j=0..n/i)))
        end:
    a:= n-> g(n$2, []):
    seq(a(n), n=12..35);