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.

A120896 Central terms of triangle A120894 (cascadence of 1+x+x^2).

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 10
5 27
6 73
7 189
8 518
9 1413
10 3857
11 10707
12 29804
13 83365
14 234665
15 662654
16 1878059
17 5341302
18 15231940
19 43552610
20 124829236
21 358537455
22 1031835260
23 2974872009
24 8590929683
25 24847042484
26 71964879243
27 208704926659

List of values

[1, 1, 2, 5, 10, 27, 73, 189, 518, 1413, 3857, 10707, 29804, 83365, 234665, 662654, 1878059, 5341302, 15231940, 43552610, 124829236, 358537455, 1031835260, 2974872009, 8590929683, 24847042484, 71964879243, 208704926659]

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

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