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.

A026115 a(n) = T(2n,n-1), where T is the array defined in A026105.

Table of values

n a(n)
1 1
2 3
3 15
4 77
5 413
6 2266
7 12636
8 71290
9 405790
10 2325923
11 13406666
12 77632590
13 451270925
14 2631763500
15 15391191315
16 90230338449
17 530098757210
18 3120158068370
19 18395925762046
20 108621483748778
21 642235028537889
22 3801900814767378
23 22531392119093175
24 133663824177577317

List of values

[1, 3, 15, 77, 413, 2266, 12636, 71290, 405790, 2325923, 13406666, 77632590, 451270925, 2631763500, 15391191315, 90230338449, 530098757210, 3120158068370, 18395925762046, 108621483748778, 642235028537889, 3801900814767378, 22531392119093175, 133663824177577317]

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

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