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.

A094790 Number of (s(0), s(1), ..., s(2n)) such that 0 < s(i) < 7 and |s(i) - s(i-1)| = 1 for i = 1,2,...,2*n, s(0) = 1, s(2n) = 3.

Table of values

n a(n)
1 1
2 3
3 9
4 28
5 89
6 286
7 924
8 2993
9 9707
10 31501
11 102256
12 331981
13 1077870
14 3499720
15 11363361
16 36896355
17 119801329
18 388991876
19 1263047761
20 4101088878
21 13316149700
22 43237262993
23 140390505643
24 455845099957
25 1480119728920

List of values

[1, 3, 9, 28, 89, 286, 924, 2993, 9707, 31501, 102256, 331981, 1077870, 3499720, 11363361, 36896355, 119801329, 388991876, 1263047761, 4101088878, 13316149700, 43237262993, 140390505643, 455845099957, 1480119728920]