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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.

A199658 Denominators of lower rational approximants of Pi with the first 5 terms given by Adam Adamandy Kochański in 1685, continued using a reconstruction by Fukś that is highly likely to match Kochański's incompletely published method.

Table of values

n a(n)
1 8
2 106
3 530762
4 2945294501
5 43521624105025
6 1466603908374792097
7 89571092024800092397857
8 9963245273671152951934207006
9 1155597392139966274078899403965586
10 200866514921276434616104042029044754594
11 113151972691506812691685713772827327500605957
12 68570669785555705551463950663318228291679702401993

List of values

[8, 106, 530762, 2945294501, 43521624105025, 1466603908374792097, 89571092024800092397857, 9963245273671152951934207006, 1155597392139966274078899403965586, 200866514921276434616104042029044754594, 113151972691506812691685713772827327500605957, 68570669785555705551463950663318228291679702401993]

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

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