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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.

A068904 a(n) = binomial(sigma(n),tau(n)), where sigma(n) is the sum and tau(n) the number of divisors of n (A000203, A000005).

Table of values

n a(n)
1 1
2 3
3 6
4 35
5 15
6 495
7 28
8 1365
9 286
10 3060
11 66
12 376740
13 91
14 10626
15 10626
16 169911
17 153
18 3262623
19 190
20 5245786
21 35960
22 58905
23 276
24 2558620845
25 4495
26 111930
27 91390
28 32468436
29 435
30 11969016345
31 496
32 67945521
33 194580
34 316251
35 194580
36 783768050065
37 703
38 487635

List of values

[1, 3, 6, 35, 15, 495, 28, 1365, 286, 3060, 66, 376740, 91, 10626, 10626, 169911, 153, 3262623, 190, 5245786, 35960, 58905, 276, 2558620845, 4495, 111930, 91390, 32468436, 435, 11969016345, 496, 67945521, 194580, 316251, 194580, 783768050065, 703, 487635]

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

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