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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.

A385839 a(n) = 1 + Sum_{k=0..n-1} (1 + k^6) * a(k) * a(n-1-k).

Table of values

n a(n)
0 1
1 2
2 7
3 471
4 345240
5 1415486250
6 22122636527386
7 1032242227753172079
8 121446394933841583123508
9 31836929544298684420302348229
10 16919577022277987344334514604394117
11 16919644700745370569015746375165719379327
12 29974250364360598877961318618919670090162246645

List of values

[1, 2, 7, 471, 345240, 1415486250, 22122636527386, 1032242227753172079, 121446394933841583123508, 31836929544298684420302348229, 16919577022277987344334514604394117, 16919644700745370569015746375165719379327, 29974250364360598877961318618919670090162246645]

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

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