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.

A344560 a(n) = hypergeom([-n/3, (1 - n)/3, (2 - n)/3], [1, 1], -27).

Table of values

n a(n)
0 1
1 1
2 1
3 7
4 25
5 61
6 211
7 841
8 2857
9 9745
10 36421
11 134971
12 488731
13 1807807
14 6788965
15 25384087
16 95114377
17 359291737
18 1361265889
19 5162682775
20 19642369405
21 74960720065
22 286563664135
23 1097430871285
24 4211301910795
25 16187715501811
26 62311953400711
27 240203420513161

List of values

[1, 1, 1, 7, 25, 61, 211, 841, 2857, 9745, 36421, 134971, 488731, 1807807, 6788965, 25384087, 95114377, 359291737, 1361265889, 5162682775, 19642369405, 74960720065, 286563664135, 1097430871285, 4211301910795, 16187715501811, 62311953400711, 240203420513161]

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

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