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.

A037031 Number of combinations of n objects taken pi(n) at a time.

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 6
5 10
6 20
7 35
8 70
9 126
10 210
11 462
12 792
13 1716
14 3003
15 5005
16 8008
17 19448
18 31824
19 75582
20 125970
21 203490
22 319770
23 817190
24 1307504
25 2042975
26 3124550
27 4686825
28 6906900
29 20030010
30 30045015
31 84672315
32 129024480
33 193536720
34 286097760
35 417225900
36 600805296

List of values

[1, 1, 2, 3, 6, 10, 20, 35, 70, 126, 210, 462, 792, 1716, 3003, 5005, 8008, 19448, 31824, 75582, 125970, 203490, 319770, 817190, 1307504, 2042975, 3124550, 4686825, 6906900, 20030010, 30045015, 84672315, 129024480, 193536720, 286097760, 417225900, 600805296]

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

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