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.

A084772 Coefficients of 1/sqrt(1 - 12*x + 16*x^2); also, a(n) is the central coefficient of (1 + 6*x + 5*x^2)^n.

Table of values

n a(n)
0 1
1 6
2 46
3 396
4 3606
5 33876
6 324556
7 3151896
8 30915046
9 305543556
10 3038019876
11 30354866856
12 304523343996
13 3065412858696
14 30946859111256
15 313206733667376
16 3176825392214406
17 32284147284682596
18 328643023505612596

List of values

[1, 6, 46, 396, 3606, 33876, 324556, 3151896, 30915046, 305543556, 3038019876, 30354866856, 304523343996, 3065412858696, 30946859111256, 313206733667376, 3176825392214406, 32284147284682596, 328643023505612596]

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

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