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.

A377114 a(n) = coefficient of sqrt(2) in the expansion of (3 + sqrt(2) + sqrt(3))^n.

Table of values

n a(n)
0 0
1 1
2 6
3 38
4 240
5 1504
6 9360
7 57968
8 357888
9 2205376
10 13574784
11 83503232
12 513469440
13 3156723712
14 19404782592
15 119276106752
16 733133340672
17 4506134745088
18 27696241336320
19 170229576458240
20 1046279833190400
21 6430725296226304
22 39524980495024128

List of values

[0, 1, 6, 38, 240, 1504, 9360, 57968, 357888, 2205376, 13574784, 83503232, 513469440, 3156723712, 19404782592, 119276106752, 733133340672, 4506134745088, 27696241336320, 170229576458240, 1046279833190400, 6430725296226304, 39524980495024128]

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

Content is available under The OEIS End-User License Agreement.