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.

A320469 a(n) = 3*a(n-1) + 10*a(n-2), n >= 2; a(0)=1, a(1)=1.

Table of values

n a(n)
0 1
1 1
2 13
3 49
4 277
5 1321
6 6733
7 33409
8 167557
9 836761
10 4185853
11 20925169
12 104634037
13 523153801
14 2615801773
15 13078943329
16 65394847717
17 326973976441
18 1634870406493
19 8174350983889
20 40871757016597
21 204358780888681
22 1021793912832013
23 5108969547382849
24 25544847770468677

List of values

[1, 1, 13, 49, 277, 1321, 6733, 33409, 167557, 836761, 4185853, 20925169, 104634037, 523153801, 2615801773, 13078943329, 65394847717, 326973976441, 1634870406493, 8174350983889, 40871757016597, 204358780888681, 1021793912832013, 5108969547382849, 25544847770468677]