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.

A196468 a(1)=11; a(n) = floor((2 + sqrt(8))*a(n-1)) for n > 1.

Table of values

n a(n)
1 11
2 53
3 255
4 1231
5 5943
6 28695
7 138551
8 668983
9 3230135
10 15596471
11 75306423
12 363611575
13 1755671991
14 8477134263
15 40931225015
16 197633437111
17 954258648503
18 4607568342455
19 22247307963831
20 107419505225143
21 518667252755895
22 2504347031924151
23 12092057138720183

List of values

[11, 53, 255, 1231, 5943, 28695, 138551, 668983, 3230135, 15596471, 75306423, 363611575, 1755671991, 8477134263, 40931225015, 197633437111, 954258648503, 4607568342455, 22247307963831, 107419505225143, 518667252755895, 2504347031924151, 12092057138720183]

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

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