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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.

A110260 Denominators in the coefficients that form the even-indexed partial quotients of the continued fraction representation of the inverse tangent of 1/x.

Table of values

n a(n)
1 1
2 9
3 225
4 245
5 99225
6 480249
7 1002001
8 41409225
9 2393453205
10 4102737925
11 940839860961
12 4113258565689
13 16802526820625
14 246430431820125
15 21147754404155625
16 10036045423404225
17 98363281194784809225

List of values

[1, 9, 225, 245, 99225, 480249, 1002001, 41409225, 2393453205, 4102737925, 940839860961, 4113258565689, 16802526820625, 246430431820125, 21147754404155625, 10036045423404225, 98363281194784809225]

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

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