A098590 - cp's OEIS frontend

A098590 a(n) = 4^n for n = 0..3; for n > 3, a(n) = 4*a(n-1) + a(n-4).

n	a(n)
0	1
1	4
2	16
3	64
4	257
5	1032
6	4144
7	16640
8	66817
9	268300
10	1077344
11	4326016
12	17370881
13	69751824
14	280084640
15	1124664576
16	4516029185
17	18133868564
18	72815558896
19	292386900160
20	1174063629825
21	4714388387864
22	18930369110352
23	76013863341568

[1, 4, 16, 64, 257, 1032, 4144, 16640, 66817, 268300, 1077344, 4326016, 17370881, 69751824, 280084640, 1124664576, 4516029185, 18133868564, 72815558896, 292386900160, 1174063629825, 4714388387864, 18930369110352, 76013863341568]

cp's OEIS Frontend

A098590 a(n) = 4^n for n = 0..3; for n > 3, a(n) = 4*a(n-1) + a(n-4).

Table of values

List of values