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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.

A351507 a(n) = [x^n] Product_{k=1..n} (1 + k*x)^n.

Table of values

n a(n)
0 1
1 1
2 13
3 630
4 65446
5 11732175
6 3222746276
7 1257489289280
8 661150527657180
9 450529025613124095
10 386183537239831846450
11 406654820487854059966416
12 516014868401631381045209376
13 776565429016998902169538130936
14 1367544537916924083498367095477800

List of values

[1, 1, 13, 630, 65446, 11732175, 3222746276, 1257489289280, 661150527657180, 450529025613124095, 386183537239831846450, 406654820487854059966416, 516014868401631381045209376, 776565429016998902169538130936, 1367544537916924083498367095477800]

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

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