A138041 - cp's OEIS frontend

A138041 a(1) = 1, a(2) = 10; for n>2, a(n+1) = 4a(n) + 6a(n-1). Also a(n) = upper left term in the 2 X 2 matrix [1,3; 3,3].

n	a(n)
1	1
2	10
3	46
4	244
5	1252
6	6472
7	33400
8	172432
9	890128
10	4595104
11	23721184
12	122455360
13	632148544
14	3263326336
15	16846196608
16	86964744448
17	448936157440
18	2317533096448
19	11963749330432
20	61760195900416
21	318823279584256

[1, 10, 46, 244, 1252, 6472, 33400, 172432, 890128, 4595104, 23721184, 122455360, 632148544, 3263326336, 16846196608, 86964744448, 448936157440, 2317533096448, 11963749330432, 61760195900416, 318823279584256]

cp's OEIS Frontend

A138041 a(1) = 1, a(2) = 10; for n>2, a(n+1) = 4a(n) + 6a(n-1). Also a(n) = upper left term in the 2 X 2 matrix [1,3; 3,3].

Table of values

List of values

cp's OEIS Frontend

A138041 a(1) = 1, a(2) = 10; for n>2, a(n+1) = 4*a(n) + 6*a(n-1). Also a(n) = upper left term in the 2 X 2 matrix [1,3; 3,3].

Table of values

List of values

A138041 a(1) = 1, a(2) = 10; for n>2, a(n+1) = 4a(n) + 6a(n-1). Also a(n) = upper left term in the 2 X 2 matrix [1,3; 3,3].