A248121 - cp's OEIS frontend

A248121 a(n) = floor(1 / (1/n - Pi^2/6 + Sum_{h=1..n} 1/h^2)).

n	a(n)
1	2
2	9
3	20
4	34
5	53
6	76
7	102
8	133
9	168
10	206
11	249
12	296
13	346
14	401
15	460
16	522
17	589
18	660
19	734
20	813
21	896
22	982
23	1073
24	1168
25	1266
26	1369
27	1476
28	1586
29	1701
30	1820
31	1942
32	2069
33	2200
34	2334
35	2473
36	2616
37	2762
38	2913
39	3068
40	3226
41	3389
42	3556
43	3726
44	3901
45	4080
46	4262
47	4449
48	4640

[2, 9, 20, 34, 53, 76, 102, 133, 168, 206, 249, 296, 346, 401, 460, 522, 589, 660, 734, 813, 896, 982, 1073, 1168, 1266, 1369, 1476, 1586, 1701, 1820, 1942, 2069, 2200, 2334, 2473, 2616, 2762, 2913, 3068, 3226, 3389, 3556, 3726, 3901, 4080, 4262, 4449, 4640]

cp's OEIS Frontend

A248121 a(n) = floor(1 / (1/n - Pi^2/6 + Sum_{h=1..n} 1/h^2)).

Table of values

List of values