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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.

A144381 a(n) = A142458(n+5, n). Fifth diagonal of A142458 triangle.

Table of values

n a(n)
1 1
2 677
3 47175
4 1709675
5 44451550
6 947113254
7 17716715490
8 302925749370
9 4856552119935
10 74258231957275
11 1095758678253041
12 15736592058221517
13 221321453958111620
14 3062416225698505060
15 41836761536767296660
16 565817483249269872324
17 7591501608353930033805
18 101209790951020335444705

List of values

[1, 677, 47175, 1709675, 44451550, 947113254, 17716715490, 302925749370, 4856552119935, 74258231957275, 1095758678253041, 15736592058221517, 221321453958111620, 3062416225698505060, 41836761536767296660, 565817483249269872324, 7591501608353930033805, 101209790951020335444705]

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

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