A090139 - cp's OEIS frontend

A090139 a(n) = 10a(n-1) - 20a(n-2), a(0)=1,a(1)=5.

n	a(n)
0	1
1	5
2	30
3	200
4	1400
5	10000
6	72000
7	520000
8	3760000
9	27200000
10	196800000
11	1424000000
12	10304000000
13	74560000000
14	539520000000
15	3904000000000
16	28249600000000
17	204416000000000
18	1479168000000000
19	10703360000000000

[1, 5, 30, 200, 1400, 10000, 72000, 520000, 3760000, 27200000, 196800000, 1424000000, 10304000000, 74560000000, 539520000000, 3904000000000, 28249600000000, 204416000000000, 1479168000000000, 10703360000000000]

cp's OEIS Frontend

A090139 a(n) = 10a(n-1) - 20a(n-2), a(0)=1,a(1)=5.

Table of values

List of values

cp's OEIS Frontend

A090139 a(n) = 10*a(n-1) - 20*a(n-2), a(0)=1,a(1)=5.

Table of values

List of values

A090139 a(n) = 10a(n-1) - 20a(n-2), a(0)=1,a(1)=5.