A268409 - cp's OEIS frontend

A268409 a(n) = 4a(n - 1) + 2a(n - 2) for n>1, a(0)=3, a(1)=5.

n	a(n)
0	3
1	5
2	26
3	114
4	508
5	2260
6	10056
7	44744
8	199088
9	885840
10	3941536
11	17537824
12	78034368
13	347213120
14	1544921216
15	6874111104
16	30586286848
17	136093369600
18	605546052096
19	2694370947584
20	11988575894528
21	53343045473280
22	237349333682176
23	1056083425675264

[3, 5, 26, 114, 508, 2260, 10056, 44744, 199088, 885840, 3941536, 17537824, 78034368, 347213120, 1544921216, 6874111104, 30586286848, 136093369600, 605546052096, 2694370947584, 11988575894528, 53343045473280, 237349333682176, 1056083425675264]

cp's OEIS Frontend

A268409 a(n) = 4a(n - 1) + 2a(n - 2) for n>1, a(0)=3, a(1)=5.

Table of values

List of values

cp's OEIS Frontend

A268409 a(n) = 4*a(n - 1) + 2*a(n - 2) for n>1, a(0)=3, a(1)=5.

Table of values

List of values

A268409 a(n) = 4a(n - 1) + 2a(n - 2) for n>1, a(0)=3, a(1)=5.