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.

A077626 Largest term in periodic part of continued fraction expansion of square root of 1+3^n or 0 if 1+3^n is square.

Table of values

n a(n)
1 0
2 6
3 10
4 18
5 30
6 54
7 92
8 162
9 280
10 486
11 840
12 1458
13 2524
14 4374
15 7574
16 13122
17 22726
18 39366
19 68182
20 118098
21 204550
22 354294
23 613654
24 1062882
25 1840964
26 3188646
27 5522896
28 9565938
29 16568690
30 28697814
31 49706070
32 86093442
33 149118214
34 258280326
35 447354646
36 774840978

List of values

[0, 6, 10, 18, 30, 54, 92, 162, 280, 486, 840, 1458, 2524, 4374, 7574, 13122, 22726, 39366, 68182, 118098, 204550, 354294, 613654, 1062882, 1840964, 3188646, 5522896, 9565938, 16568690, 28697814, 49706070, 86093442, 149118214, 258280326, 447354646, 774840978]

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

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