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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.

A245678 Denominator of sum of fractions A182972(k) / A182973(k) such that A182972(k) + A182973(k) = n.

Table of values

n a(n)
3 2
4 3
5 12
6 5
7 60
8 35
9 280
10 63
11 2520
12 77
13 27720
14 1287
15 8008
16 6435
17 144144
18 2431
19 2450448
20 46189
21 3695120
22 146965
23 232792560
24 96577
25 1070845776
26 1300075
27 2974571600
28 5014575
29 11473347600
30 215441
31 332727080400
32 31556720475
33 486207248800
34 20419054425

List of values

[2, 3, 12, 5, 60, 35, 280, 63, 2520, 77, 27720, 1287, 8008, 6435, 144144, 2431, 2450448, 46189, 3695120, 146965, 232792560, 96577, 1070845776, 1300075, 2974571600, 5014575, 11473347600, 215441, 332727080400, 31556720475, 486207248800, 20419054425]

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

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