cp's OEIS Frontend

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.

A088488 a(n) = Sum_{k=1..8} floor(A254876(n,k)/A254876(n-1,k)), where A254876(n,k) = n! / (Product_{m=(n-floor((2n)/(3^k))) .. (n-floor((n)/(3^k)))} m).

Table of values

n a(n)
2 8
3 17
4 22
5 26
6 40
7 43
8 49
9 66
10 65
11 69
12 87
13 87
14 68
15 109
16 108
17 109
18 137
19 130
20 130
21 157
22 153
23 133
24 180
25 174
26 171
27 211
28 196
29 191
30 227
31 218
32 186
33 250
34 240
35 232
36 280
37 262
38 253
39 298
40 285
41 164
42 319
43 304
44 292
45 350
46 327
47 313
48 367
49 349
50 292
51 390
52 371
53 354
54 426
55 393
56 375

List of values

[8, 17, 22, 26, 40, 43, 49, 66, 65, 69, 87, 87, 68, 109, 108, 109, 137, 130, 130, 157, 153, 133, 180, 174, 171, 211, 196, 191, 227, 218, 186, 250, 240, 232, 280, 262, 253, 298, 285, 164, 319, 304, 292, 350, 327, 313, 367, 349, 292, 390, 371, 354, 426, 393, 375]

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

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