A094803 - cp's OEIS frontend

A094803 Number of (s(0), s(1), ..., s(2n)) such that 0 < s(i) < 8 and |s(i) - s(i-1)| = 1 for i = 1,2,...,2n, s(0) = 1, s(2n) = 3.

n	a(n)
1	1
2	3
3	9
4	28
5	90
6	296
7	988
8	3328
9	11272
10	38304
11	130416
12	444544
13	1516320
14	5174144
15	17659840
16	60282880
17	205795456
18	702583296
19	2398676736
20	8189409280
21	27960021504
22	95460743168
23	325921881088
24	1112763940864
25	3799207806976
26	12971294957568
27	44286747439104
28	151204366286848

[1, 3, 9, 28, 90, 296, 988, 3328, 11272, 38304, 130416, 444544, 1516320, 5174144, 17659840, 60282880, 205795456, 702583296, 2398676736, 8189409280, 27960021504, 95460743168, 325921881088, 1112763940864, 3799207806976, 12971294957568, 44286747439104, 151204366286848]

cp's OEIS Frontend

A094803 Number of (s(0), s(1), ..., s(2n)) such that 0 < s(i) < 8 and |s(i) - s(i-1)| = 1 for i = 1,2,...,2n, s(0) = 1, s(2n) = 3.

Table of values

List of values