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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.

A343978 Number of ordered 6-tuples (a,b,c,d,e,f) with gcd(a,b,c,d,e,f)=1 (1<= {a,b,c,d,e,f} <= n).

Table of values

n a(n)
1 1
2 63
3 727
4 4031
5 15559
6 45863
7 116855
8 257983
9 526615
10 983583
11 1755143
12 2935231
13 4776055
14 7407727
15 11256623
16 16498719
17 23859071
18 33434063
19 46467719
20 62949975
21 84644439
22 111486599
23 146142583
24 187854119
25 240880239
26 303814503
27 382049919
28 473813703
29 586746719

List of values

[1, 63, 727, 4031, 15559, 45863, 116855, 257983, 526615, 983583, 1755143, 2935231, 4776055, 7407727, 11256623, 16498719, 23859071, 33434063, 46467719, 62949975, 84644439, 111486599, 146142583, 187854119, 240880239, 303814503, 382049919, 473813703, 586746719]

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

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