A354855 - cp's OEIS frontend

A354855 a(n) = floor(n(2+sqrt(5))^n), equivalently, floor(nphi^(3n)), where phi = (1+sqrt(5))/2 is the golden ratio.

n	a(n)
0	0
1	4
2	35
3	228
4	1287
5	6820
6	34667
7	171332
8	829455
9	3952836
10	18604979
11	86693156
12	400623383
13	1838490212
14	8387044091
15	38065809540
16	171999313951
17	774138335108
18	3472202765123
19	15525625108324
20	69229056160039
21	307921937307684
22	1366491508589195
23	6051666872017348

[0, 4, 35, 228, 1287, 6820, 34667, 171332, 829455, 3952836, 18604979, 86693156, 400623383, 1838490212, 8387044091, 38065809540, 171999313951, 774138335108, 3472202765123, 15525625108324, 69229056160039, 307921937307684, 1366491508589195, 6051666872017348]

cp's OEIS Frontend

A354855 a(n) = floor(n(2+sqrt(5))^n), equivalently, floor(nphi^(3n)), where phi = (1+sqrt(5))/2 is the golden ratio.

Table of values

List of values

cp's OEIS Frontend

A354855 a(n) = floor(n*(2+sqrt(5))^n), equivalently, floor(n*phi^(3n)), where phi = (1+sqrt(5))/2 is the golden ratio.

Table of values

List of values

A354855 a(n) = floor(n(2+sqrt(5))^n), equivalently, floor(nphi^(3n)), where phi = (1+sqrt(5))/2 is the golden ratio.