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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.

A258176 Sum over all Dyck paths of semilength n of products over all peaks p of x_p^y_p, where x_p and y_p are the coordinates of peak p.

Table of values

n a(n)
0 1
1 1
2 7
3 142
4 9354
5 2503597
6 3260627607
7 24105227716863
8 1028836978599566213
9 290383808553140390346475
10 511963364817949502725911280781
11 6704846980724405836568589845161191576
12 584709361918378923208855262622537662297053728

List of values

[1, 1, 7, 142, 9354, 2503597, 3260627607, 24105227716863, 1028836978599566213, 290383808553140390346475, 511963364817949502725911280781, 6704846980724405836568589845161191576, 584709361918378923208855262622537662297053728]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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