A081554 - cp's OEIS frontend

A081554 a(n) = sqrt(2)( (3+2sqrt(2))^n - (3-2*sqrt(2))^n ).

n	a(n)
0	0
1	8
2	48
3	280
4	1632
5	9512
6	55440
7	323128
8	1883328
9	10976840
10	63977712
11	372889432
12	2173358880
13	12667263848
14	73830224208
15	430314081400
16	2508054264192
17	14618011503752
18	85200014758320
19	496582077046168
20	2894292447518688

[0, 8, 48, 280, 1632, 9512, 55440, 323128, 1883328, 10976840, 63977712, 372889432, 2173358880, 12667263848, 73830224208, 430314081400, 2508054264192, 14618011503752, 85200014758320, 496582077046168, 2894292447518688]

cp's OEIS Frontend

A081554 a(n) = sqrt(2)( (3+2sqrt(2))^n - (3-2*sqrt(2))^n ).

Table of values

List of values

cp's OEIS Frontend

A081554 a(n) = sqrt(2)*( (3+2*sqrt(2))^n - (3-2*sqrt(2))^n ).

Table of values

List of values

A081554 a(n) = sqrt(2)( (3+2sqrt(2))^n - (3-2*sqrt(2))^n ).