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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.

A356047 The number of links of a qualifying "snake" polyline that connects the midpoints of opposite sides of the n-th regular integer hexagon that allows such a construction.

Table of values

n a(n)
1 2
2 3
3 44
4 45
5 626
6 627
7 8732
8 8733
9 121634
10 121635
11 1694156
12 1694157
13 23596562
14 23596563
15 328657724
16 328657725
17 4577611586
18 4577611587
19 63757904492
20 63757904493
21 888033051314
22 888033051315
23 12368704813916
24 12368704813917
25 172273834343522
26 172273834343523
27 2399464975995404
28 2399464975995405
29 33420235829592146
30 33420235829592147

List of values

[2, 3, 44, 45, 626, 627, 8732, 8733, 121634, 121635, 1694156, 1694157, 23596562, 23596563, 328657724, 328657725, 4577611586, 4577611587, 63757904492, 63757904493, 888033051314, 888033051315, 12368704813916, 12368704813917, 172273834343522, 172273834343523, 2399464975995404, 2399464975995405, 33420235829592146, 33420235829592147]

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

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