A059512 - cp's OEIS frontend

A059512 For n>=2, the number of (s(0), s(1), ..., s(n-1)) such that 0 < s(i) < 5 and |s(i) - s(i-1)| <= 1 for i = 1,2,....,n-1, s(0) = 2, s(n-1) = 2.

n	a(n)
0	0
1	1
2	1
3	3
4	7
5	18
6	46
7	119
8	309
9	805
10	2101
11	5490
12	14356
13	37557
14	98281
15	257231
16	673323
17	1762594
18	4614226
19	12079707
20	31624285
21	82792161
22	216750601
23	567457058
24	1485616392
25	3889385353
26	10182528721
27	26658183099
28	69791991919

[0, 1, 1, 3, 7, 18, 46, 119, 309, 805, 2101, 5490, 14356, 37557, 98281, 257231, 673323, 1762594, 4614226, 12079707, 31624285, 82792161, 216750601, 567457058, 1485616392, 3889385353, 10182528721, 26658183099, 69791991919]

cp's OEIS Frontend

A059512 For n>=2, the number of (s(0), s(1), ..., s(n-1)) such that 0 < s(i) < 5 and |s(i) - s(i-1)| <= 1 for i = 1,2,....,n-1, s(0) = 2, s(n-1) = 2.

Table of values

List of values