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.

A274764 Number of linear extensions of the one-level grid poset G[(1^n), (1^(n-1)), (1^(n-1))].

Table of values

n a(n)
1 1
2 20
3 962
4 75080
5 8133732
6 1127589120
7 190416834360
8 37902843124640
9 8686847271179984
10 2252403871470920960
11 651771144516905730048
12 208193858907016903262208
13 72758882836839703611703296
14 27613191886304138293279719424
15 11308972154842887758316960743424
16 4971172331379604809443266242019328

List of values

[1, 20, 962, 75080, 8133732, 1127589120, 190416834360, 37902843124640, 8686847271179984, 2252403871470920960, 651771144516905730048, 208193858907016903262208, 72758882836839703611703296, 27613191886304138293279719424, 11308972154842887758316960743424, 4971172331379604809443266242019328]

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

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