A127220 - cp's OEIS frontend

A127220 a(n) = 3^ntetranacci(n) or (2^n)A001648(n).

n	a(n)
1	3
2	27
3	189
4	1215
5	6318
6	37179
7	216513
8	1253151
9	7223661
10	41806692
11	241805655
12	1398221271
13	8084811933
14	46753521975
15	270362105694
16	1563413859999
17	9040715391141
18	52279683047127
19	302316992442837
20	1748203962973380
21	10109314209860523
22	58458991419115875

[3, 27, 189, 1215, 6318, 37179, 216513, 1253151, 7223661, 41806692, 241805655, 1398221271, 8084811933, 46753521975, 270362105694, 1563413859999, 9040715391141, 52279683047127, 302316992442837, 1748203962973380, 10109314209860523, 58458991419115875]

cp's OEIS Frontend

A127220 a(n) = 3^ntetranacci(n) or (2^n)A001648(n).

Table of values

List of values

cp's OEIS Frontend

A127220 a(n) = 3^n*tetranacci(n) or (2^n)*A001648(n).

Table of values

List of values

A127220 a(n) = 3^ntetranacci(n) or (2^n)A001648(n).