cp's OEIS Frontend

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.

A060790 Inscribe two circles of curvature 2 inside a circle of curvature -1. Sequence gives curvatures of the smallest circles that can be sequentially inscribed in such a diagram.

Table of values

n a(n)
0 -1
1 2
2 2
3 3
4 15
5 38
6 110
7 323
8 927
9 2682
10 7754
11 22403
12 64751
13 187134
14 540822
15 1563011
16 4517183
17 13054898
18 37729362
19 109039875
20 315131087
21 910745750
22 2632104062
23 7606921923
24 21984412383
25 63536130986
26 183622826522
27 530679817859
28 1533693138351
29 4432455434478

List of values

[-1, 2, 2, 3, 15, 38, 110, 323, 927, 2682, 7754, 22403, 64751, 187134, 540822, 1563011, 4517183, 13054898, 37729362, 109039875, 315131087, 910745750, 2632104062, 7606921923, 21984412383, 63536130986, 183622826522, 530679817859, 1533693138351, 4432455434478]

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

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