A069008 - cp's OEIS frontend

A069008 Let M denote the 6 X 6 matrix with rows /1,1,1,1,1,1/1,1,1,1,1,0/1,1,1,1,0,0/1,1,1,0,0,0/1,1,0,0,0,0/1,0,0,0,0,0/ and A(n) the vector (x(n),y(n),z(n),t(n),u(n),v(n)) = M^n*A where A is the vector (1,1,1,1,1,1); then a(n) = z(n).

n	a(n)
0	1
1	4
2	18
3	74
4	309
5	1280
6	5313
7	22035
8	91410
9	379171
10	1572857
11	6524375
12	27063881
13	112264055
14	465684247
15	1931711700
16	8012962189
17	33238687760
18	137877896315
19	571933356551
20	2372445281505
21	9841175633650
22	40822327332150
23	169335704473650
24	702423959724591

[1, 4, 18, 74, 309, 1280, 5313, 22035, 91410, 379171, 1572857, 6524375, 27063881, 112264055, 465684247, 1931711700, 8012962189, 33238687760, 137877896315, 571933356551, 2372445281505, 9841175633650, 40822327332150, 169335704473650, 702423959724591]

cp's OEIS Frontend

A069008 Let M denote the 6 X 6 matrix with rows /1,1,1,1,1,1/1,1,1,1,1,0/1,1,1,1,0,0/1,1,1,0,0,0/1,1,0,0,0,0/1,0,0,0,0,0/ and A(n) the vector (x(n),y(n),z(n),t(n),u(n),v(n)) = M^n*A where A is the vector (1,1,1,1,1,1); then a(n) = z(n).

Table of values

List of values