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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.

A245677 Numerator of sum of fractions A182972(k) / A182973(k) such that A182972(k) + A182973(k) = n.

Table of values

n a(n)
3 1
4 1
5 11
6 1
7 79
8 26
9 339
10 34
11 5297
12 62
13 69071
14 1165
15 11723
16 9844
17 471181
18 2625
19 8960447
20 73244
21 8231001
22 243757
23 1031626241
24 151100
25 4178462515
26 2651758
27 10396147563
28 11843614
29 64166447971
30 362476
31 1989542332021
32 97275764008
33 1830230212061
34 57286319768

List of values

[1, 1, 11, 1, 79, 26, 339, 34, 5297, 62, 69071, 1165, 11723, 9844, 471181, 2625, 8960447, 73244, 8231001, 243757, 1031626241, 151100, 4178462515, 2651758, 10396147563, 11843614, 64166447971, 362476, 1989542332021, 97275764008, 1830230212061, 57286319768]

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

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