A133642 - cp's OEIS frontend

A133642 a(n) = 4a(n-1)+20a(n-2) for n>=3, a(0)=1, a(1)=4, a(2)=32.

n	a(n)
0	1
1	4
2	32
3	208
4	1472
5	10048
6	69632
7	479488
8	3310592
9	22832128
10	157540352
11	1086803968
12	7498022912
13	51728171008
14	356873142272
15	2462055989248
16	16985686802432
17	117183866994688
18	808449204027392
19	5577474156003328
20	38478880704561152
21	265465005938311168

[1, 4, 32, 208, 1472, 10048, 69632, 479488, 3310592, 22832128, 157540352, 1086803968, 7498022912, 51728171008, 356873142272, 2462055989248, 16985686802432, 117183866994688, 808449204027392, 5577474156003328, 38478880704561152, 265465005938311168]

cp's OEIS Frontend

A133642 a(n) = 4a(n-1)+20a(n-2) for n>=3, a(0)=1, a(1)=4, a(2)=32.

Table of values

List of values

cp's OEIS Frontend

A133642 a(n) = 4*a(n-1)+20*a(n-2) for n>=3, a(0)=1, a(1)=4, a(2)=32.

Table of values

List of values

A133642 a(n) = 4a(n-1)+20a(n-2) for n>=3, a(0)=1, a(1)=4, a(2)=32.