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.

A291821 Central terms of triangle A291820.

Table of values

n a(n)
1 1
2 2
3 38
4 1245
5 55566
6 3062271
7 197983540
8 14567100211
9 1196032764639
10 108105913233804
11 10651377348228706
12 1135394214204504346
13 130161542660895451934
14 15969338705916554563833
15 2088140238440781625249392
16 289961586742613652475061397
17 42623636996226195002733858964
18 6613842247421357561153219091827
19 1080515428870235624428208631160409
20 185421585676394321869412169323524031

List of values

[1, 2, 38, 1245, 55566, 3062271, 197983540, 14567100211, 1196032764639, 108105913233804, 10651377348228706, 1135394214204504346, 130161542660895451934, 15969338705916554563833, 2088140238440781625249392, 289961586742613652475061397, 42623636996226195002733858964, 6613842247421357561153219091827, 1080515428870235624428208631160409, 185421585676394321869412169323524031]

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

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