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.

A004730 Numerator of n!!/(n+1)!! (cf. A006882).

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 8
5 5
6 16
7 35
8 128
9 63
10 256
11 231
12 1024
13 429
14 2048
15 6435
16 32768
17 12155
18 65536
19 46189
20 262144
21 88179
22 524288
23 676039
24 4194304
25 1300075
26 8388608
27 5014575
28 33554432
29 9694845
30 67108864
31 300540195
32 2147483648
33 583401555
34 4294967296
35 2268783825

List of values

[1, 1, 2, 3, 8, 5, 16, 35, 128, 63, 256, 231, 1024, 429, 2048, 6435, 32768, 12155, 65536, 46189, 262144, 88179, 524288, 676039, 4194304, 1300075, 8388608, 5014575, 33554432, 9694845, 67108864, 300540195, 2147483648, 583401555, 4294967296, 2268783825]

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

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