A084847 - cp's OEIS frontend

A084847 a(n) = 23^n+2^(2n-1)(n-2).

n	a(n)
0	1
1	4
2	18
3	86
4	418
5	2022
6	9650
7	45334
8	209730
9	956870
10	4312402
11	19228662
12	84948962
13	372287398
14	1620178674
15	7008019670
16	30150864514
17	129107299206
18	550530654866
19	2338786731958
20	9902578218786
21	41802362561894
22	175984622563378

[1, 4, 18, 86, 418, 2022, 9650, 45334, 209730, 956870, 4312402, 19228662, 84948962, 372287398, 1620178674, 7008019670, 30150864514, 129107299206, 550530654866, 2338786731958, 9902578218786, 41802362561894, 175984622563378]

cp's OEIS Frontend

A084847 a(n) = 23^n+2^(2n-1)(n-2).

Table of values

List of values

cp's OEIS Frontend

A084847 a(n) = 2*3^n+2^(2n-1)*(n-2).

Table of values

List of values

A084847 a(n) = 23^n+2^(2n-1)(n-2).