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.

A069963 Define C(n) by the recursion C(0) = 6*i where i^2 = -1, C(n+1) = 1/(1 + C(n)), then a(n) = 6*(-1)^n/Im(C(n)) where Im(z) denotes the imaginary part of z.

Table of values

n a(n)
0 1
1 37
2 40
3 153
4 349
5 964
6 2473
7 6525
8 17032
9 44641
10 116821
11 305892
12 800785
13 2096533
14 5488744
15 14369769
16 37620493
17 98491780
18 257854777
19 675072621
20 1767363016
21 4627016497
22 12113686405
23 31714042788
24 83028441889
25 217371282949
26 569085406888
27 1489884937785

List of values

[1, 37, 40, 153, 349, 964, 2473, 6525, 17032, 44641, 116821, 305892, 800785, 2096533, 5488744, 14369769, 37620493, 98491780, 257854777, 675072621, 1767363016, 4627016497, 12113686405, 31714042788, 83028441889, 217371282949, 569085406888, 1489884937785]