A069005 - cp's OEIS frontend

A069005 Let M = 4 X 4 matrix with rows /1,1,1,1/1,1,1,0/1,1,0,0/1,0,0,0/ and A(n) = vector (x(n),y(n),z(n),t(n)) = M^n*A where A is the vector (1,1,1,1); then a(n)=z(n).

n	a(n)
1	1
2	7
3	19
4	56
5	160
6	462
7	1329
8	3828
9	11021
10	31735
11	91376
12	263108
13	757588
14	2181389
15	6281058
16	18085587
17	52075371
18	149945056
19	431749580
20	1243173370
21	3579575053
22	10306975580
23	29677753369
24	85453685055
25	246054079584
26	708484485384

[1, 7, 19, 56, 160, 462, 1329, 3828, 11021, 31735, 91376, 263108, 757588, 2181389, 6281058, 18085587, 52075371, 149945056, 431749580, 1243173370, 3579575053, 10306975580, 29677753369, 85453685055, 246054079584, 708484485384]

cp's OEIS Frontend

A069005 Let M = 4 X 4 matrix with rows /1,1,1,1/1,1,1,0/1,1,0,0/1,0,0,0/ and A(n) = vector (x(n),y(n),z(n),t(n)) = M^n*A where A is the vector (1,1,1,1); then a(n)=z(n).

Table of values

List of values