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.

A064141 Sum of non-unitary divisors of central binomial coefficient C(n, floor(n/2)).

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 0
6 12
7 0
8 0
9 72
10 328
11 0
12 768
13 1344
14 4032
15 3024
16 9072
17 0
18 36288
19 0
20 120960
21 322560
22 967680
23 0
24 1935360
25 6013440
26 15966720
27 43545600
28 104094720
29 163296000
30 362361600
31 149299200
32 447897600
33 1194393600
34 4644864000
35 2654208000

List of values

[0, 0, 0, 0, 0, 12, 0, 0, 72, 328, 0, 768, 1344, 4032, 3024, 9072, 0, 36288, 0, 120960, 322560, 967680, 0, 1935360, 6013440, 15966720, 43545600, 104094720, 163296000, 362361600, 149299200, 447897600, 1194393600, 4644864000, 2654208000]

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

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