A069006 - cp's OEIS frontend

A069006 Let M denote the 5 X 5 matrix with rows /1,1,1,1,1/1,1,1,1,0/1,1,1,0,0/1,1,0,0,0/1,0,0,0,0/ and A(n) = vector (x(n),y(n),z(n),t(n),u(n)) = M^n*A where A is the vector (1,1,1,1,1); then a(n) = t(n).

n	a(n)
0	1
1	2
2	9
3	29
4	105
5	365
6	1287
7	4516
8	15873
9	55759
10	195910
11	688286
12	2418195
13	8495917
14	29849041
15	104869718
16	368442700
17	1294463368
18	4547886208
19	15978257251
20	56137003923
21	197228218022
22	692929213991
23	2434493909304
24	8553197751125

[1, 2, 9, 29, 105, 365, 1287, 4516, 15873, 55759, 195910, 688286, 2418195, 8495917, 29849041, 104869718, 368442700, 1294463368, 4547886208, 15978257251, 56137003923, 197228218022, 692929213991, 2434493909304, 8553197751125]

cp's OEIS Frontend

A069006 Let M denote the 5 X 5 matrix with rows /1,1,1,1,1/1,1,1,1,0/1,1,1,0,0/1,1,0,0,0/1,0,0,0,0/ and A(n) = vector (x(n),y(n),z(n),t(n),u(n)) = M^n*A where A is the vector (1,1,1,1,1); then a(n) = t(n).

Table of values

List of values