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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A320192 Number of summation terms of the reciprocal integer squares series that gives the best approximation to n terms of the Euler product for zeta(2).

Table of values

n a(n)
1 3
2 6
3 12
4 20
5 27
6 37
7 46
8 59
9 72
10 84
11 98
12 111
13 125
14 140
15 157
16 172
17 188
18 205
19 221
20 239
21 258
22 277
23 296
24 316
25 334
26 353
27 374
28 395
29 418
30 441
31 462
32 484
33 505
34 528
35 549
36 572
37 595
38 618
39 641
40 664
41 688
42 712
43 736
44 761
45 786
46 813
47 838
48 862
49 886
50 912
51 937
52 963
53 991

List of values

[3, 6, 12, 20, 27, 37, 46, 59, 72, 84, 98, 111, 125, 140, 157, 172, 188, 205, 221, 239, 258, 277, 296, 316, 334, 353, 374, 395, 418, 441, 462, 484, 505, 528, 549, 572, 595, 618, 641, 664, 688, 712, 736, 761, 786, 813, 838, 862, 886, 912, 937, 963, 991]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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