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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.

A227214 Generalized Markoff numbers: largest of 7-tuple of positive numbers a, b, c, d, e, f, g satisfying the Markoff(7) equation a^2+b^2+c^2+d^2+e^2+f^2+g^2 = 7abcdefg.

Table of values

n a(n)
1 1
2 6
3 41
4 281
5 1721
6 1926
7 13201
8 72241
9 80646
10 90481
11 493921
12 620166
13 2963561
14 3032401
15 3788441
16 4250681
17 23145121
18 29134601
19 127288601
20 141753606
21 158630641
22 177975881
23 199691526
24 870287321

List of values

[1, 6, 41, 281, 1721, 1926, 13201, 72241, 80646, 90481, 493921, 620166, 2963561, 3032401, 3788441, 4250681, 23145121, 29134601, 127288601, 141753606, 158630641, 177975881, 199691526, 870287321]

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

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