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.

A220336 A modified Engel expansion for 4*sqrt(2) - 5.

Table of values

n a(n)
1 2
2 4
3 6
4 2
5 18
6 34
7 2
8 578
9 1154
10 2
11 665858
12 1331714
13 2
14 886731088898
15 1773462177794
16 2
17 1572584048032918633353218
18 3145168096065837266706434
19 2
20 4946041176255201878775086487573351061418968498178
21 9892082352510403757550172975146702122837936996354

List of values

[2, 4, 6, 2, 18, 34, 2, 578, 1154, 2, 665858, 1331714, 2, 886731088898, 1773462177794, 2, 1572584048032918633353218, 3145168096065837266706434, 2, 4946041176255201878775086487573351061418968498178, 9892082352510403757550172975146702122837936996354]

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

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