A208060 - cp's OEIS frontend

A208060 a(n) = 1 + 2n + 2^2n[n/2] + 2^3n[n/2][n/3] + 2^4n[n/2][n/3][n/4] + ... where [x]=floor(x).

n	a(n)
0	1
1	3
2	13
3	43
4	233
5	611
6	4405
7	10515
8	64145
9	218755
10	1215821
11	2689083
12	28162105
13	61179795
14	307475813
15	1236997051
16	8042542625
17	17101581699
18	146671231501
19	309740445795
20	2415132010441
21	8877053064643
22	40919003272005
23	85564885298027
24	1068638260341937
25	2783025471994851

[1, 3, 13, 43, 233, 611, 4405, 10515, 64145, 218755, 1215821, 2689083, 28162105, 61179795, 307475813, 1236997051, 8042542625, 17101581699, 146671231501, 309740445795, 2415132010441, 8877053064643, 40919003272005, 85564885298027, 1068638260341937, 2783025471994851]

cp's OEIS Frontend

A208060 a(n) = 1 + 2n + 2^2n[n/2] + 2^3n[n/2][n/3] + 2^4n[n/2][n/3][n/4] + ... where [x]=floor(x).

Table of values

List of values

cp's OEIS Frontend

A208060 a(n) = 1 + 2*n + 2^2*n*[n/2] + 2^3*n*[n/2]*[n/3] + 2^4*n*[n/2]*[n/3]*[n/4] + ... where [x]=floor(x).

Table of values

List of values

A208060 a(n) = 1 + 2n + 2^2n[n/2] + 2^3n[n/2][n/3] + 2^4n[n/2][n/3][n/4] + ... where [x]=floor(x).