A320534 - cp's OEIS frontend

A320534 a(n) = ((1 + sqrt(4n^2 + 1))^n + (1 - sqrt(4n^2 + 1))^n)/2^n.

n	a(n)
0	2
1	1
2	9
3	28
4	577
5	3251
6	105193
7	857501
8	37831169
9	403541596
10	22550351001
11	297238464799
12	20106709638337
13	315569447182601
14	25059144736026633
15	456277507970965876
16	41600491470425952257
17	862007599260004863571
18	88733427132980061934777
19	2061632980592377284802309

[2, 1, 9, 28, 577, 3251, 105193, 857501, 37831169, 403541596, 22550351001, 297238464799, 20106709638337, 315569447182601, 25059144736026633, 456277507970965876, 41600491470425952257, 862007599260004863571, 88733427132980061934777, 2061632980592377284802309]

cp's OEIS Frontend

A320534 a(n) = ((1 + sqrt(4n^2 + 1))^n + (1 - sqrt(4n^2 + 1))^n)/2^n.

Table of values

List of values

cp's OEIS Frontend

A320534 a(n) = ((1 + sqrt(4*n^2 + 1))^n + (1 - sqrt(4*n^2 + 1))^n)/2^n.

Table of values

List of values

A320534 a(n) = ((1 + sqrt(4n^2 + 1))^n + (1 - sqrt(4n^2 + 1))^n)/2^n.