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.

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A362886 Antidiagonal sums of A362885.

Original entry on oeis.org

1, 1, 4, 12, 37, 123, 440, 1686, 6901, 30085, 139212, 681336, 3515397, 19064135, 108370384, 644142962, 3994439189, 25789465377, 173033812804, 1204425693988, 8683782562597, 64757730613875, 498827437211176, 3964154812486062, 32463601480302005, 273670283527555869
Offset: 0

Views

Author

Stefano Spezia, May 08 2023

Keywords

Crossrefs

Cf. A362885.

Programs

  • Mathematica
    Join[{1},Table[Sum[(1+2(n-k))k^(n-k),{k,0,n}],{n,25}]]

Formula

a(n) = Sum_{k=0..n} (1 + 2*(n - k))*k^(n-k).
Showing 1-1 of 1 results.