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.

A274572 Column 1 of triangle A274570.

Table of values

n a(n)
0 1
1 2
2 20
3 470
4 19912
5 1326382
6 127677580
7 16767030632
8 2880746218304
9 627213971899610
10 168767535712912684
11 54994347890521005100
12 21342142821229037730064
13 9726400286221416303901358
14 5143644030714149522751534524
15 3124088412968372614077895431788
16 2159818183532141245447039295746240
17 1686295004858842334963772859214802354
18 1476540037893212558044217633785452773068
19 1440964034588041764141738802548853847618732

List of values

[1, 2, 20, 470, 19912, 1326382, 127677580, 16767030632, 2880746218304, 627213971899610, 168767535712912684, 54994347890521005100, 21342142821229037730064, 9726400286221416303901358, 5143644030714149522751534524, 3124088412968372614077895431788, 2159818183532141245447039295746240, 1686295004858842334963772859214802354, 1476540037893212558044217633785452773068, 1440964034588041764141738802548853847618732]

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

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