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.

A005716 Coefficient of x^8 in expansion of (1+x+x^2)^n.

Table of values

n a(n)
4 1
5 15
6 90
7 357
8 1107
9 2907
10 6765
11 14355
12 28314
13 52624
14 93093
15 157950
16 258570
17 410346
18 633726
19 955434
20 1409895
21 2040885
22 2903428
23 4065963
24 5612805
25 7646925
26 10293075
27 13701285
28 18050760
29 23554206
30 30462615
31 39070540
32 49721892
33 62816292
34 78816012
35 98253540

List of values

[1, 15, 90, 357, 1107, 2907, 6765, 14355, 28314, 52624, 93093, 157950, 258570, 410346, 633726, 955434, 1409895, 2040885, 2903428, 4065963, 5612805, 7646925, 10293075, 13701285, 18050760, 23554206, 30462615, 39070540, 49721892, 62816292, 78816012, 98253540]

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

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