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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.

A203472 a(n) = Product_{3 <= i < j <= n+2} (i + j).

Table of values

n a(n)
1 1
2 7
3 504
4 498960
5 8562153600
6 3085457671296000
7 27493649380770693120000
8 6982164025191299372050022400000
9 57286678477842677171688269225656320000000
10 16987900892972660430046341200043192304533504000000000
11 201504981205067832055356568153709798734509139298353152000000000000

List of values

[1, 7, 504, 498960, 8562153600, 3085457671296000, 27493649380770693120000, 6982164025191299372050022400000, 57286678477842677171688269225656320000000, 16987900892972660430046341200043192304533504000000000, 201504981205067832055356568153709798734509139298353152000000000000]

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

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