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.

A059216 Variation of Boustrophedon transform applied to all-1's sequence (see Comments for details).

Table of values

n a(n)
1 1
2 2
3 5
4 14
5 45
6 169
7 740
8 3721
9 21142
10 133850
11 933770
12 7114115
13 58758459
14 522892624
15 4987285553
16 50751731950
17 548839590949
18 6285265061237
19 75985249771496
20 967047685739501
21 12923640789599709
22 180945893711983990
23 2648725169100050894

List of values

[1, 2, 5, 14, 45, 169, 740, 3721, 21142, 133850, 933770, 7114115, 58758459, 522892624, 4987285553, 50751731950, 548839590949, 6285265061237, 75985249771496, 967047685739501, 12923640789599709, 180945893711983990, 2648725169100050894]

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

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