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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.

A301741 a(n) = n! * [x^n] exp((n + 1)*x + x^2/2).

Table of values

n a(n)
0 1
1 2
2 10
3 76
4 778
5 10026
6 155884
7 2839880
8 59339004
9 1399069450
10 36746349496
11 1064024248068
12 33676500286840
13 1156685567791586
14 42850609041047760
15 1703182952266379536
16 72299420602524921616
17 3264579136056004359570
18 156238968782480840396704
19 7900247992586138688381500

List of values

[1, 2, 10, 76, 778, 10026, 155884, 2839880, 59339004, 1399069450, 36746349496, 1064024248068, 33676500286840, 1156685567791586, 42850609041047760, 1703182952266379536, 72299420602524921616, 3264579136056004359570, 156238968782480840396704, 7900247992586138688381500]

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

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