A094855 - cp's OEIS frontend

A094855 Number of (s(0), s(1), ..., s(2n+1)) such that 0 < s(i) < 9 and |s(i) - s(i-1)| = 1 for i = 1,2,...,2n+1, s(0) = 4, s(2n+1) = 5.

n	a(n)
0	1
1	3
2	10
3	35
4	124
5	440
6	1560
7	5525
8	19551
9	69142
10	244419
11	863788
12	3052100
13	10782928
14	38092457
15	134560491
16	475313762
17	1678930611
18	5930320300
19	20946860064
20	73987208296
21	261331829501
22	923052962407
23	3260318517230
24	11515766271219

[1, 3, 10, 35, 124, 440, 1560, 5525, 19551, 69142, 244419, 863788, 3052100, 10782928, 38092457, 134560491, 475313762, 1678930611, 5930320300, 20946860064, 73987208296, 261331829501, 923052962407, 3260318517230, 11515766271219]

cp's OEIS Frontend

A094855 Number of (s(0), s(1), ..., s(2n+1)) such that 0 < s(i) < 9 and |s(i) - s(i-1)| = 1 for i = 1,2,...,2n+1, s(0) = 4, s(2n+1) = 5.

Table of values

List of values