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.

A050253 G.f.: ( 1 - x^2 - sqrt( 1 - 2*x^2 - 4*x^3 - 3*x^4 ) ) / ( 2*x^3 ).

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 3
5 5
6 9
7 16
8 29
9 54
10 101
11 191
12 365
13 702
14 1359
15 2647
16 5181
17 10187
18 20113
19 39856
20 79243
21 158036
22 316053
23 633689
24 1273559
25 2565136
26 5177043
27 10468199
28 21204379
29 43022215
30 87423573
31 177906552
32 362531425
33 739700055
34 1511091377

List of values

[1, 1, 1, 2, 3, 5, 9, 16, 29, 54, 101, 191, 365, 702, 1359, 2647, 5181, 10187, 20113, 39856, 79243, 158036, 316053, 633689, 1273559, 2565136, 5177043, 10468199, 21204379, 43022215, 87423573, 177906552, 362531425, 739700055, 1511091377]

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

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