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.

A151090 Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 0), (0, 0, 1), (0, 1, 0), (1, 1, 1)}.

Table of values

n a(n)
0 1
1 3
2 11
3 43
4 175
5 731
6 3111
7 13427
8 58591
9 257947
10 1143943
11 5104419
12 22896303
13 103169899
14 466725143
15 2118787187
16 9648585791
17 44060516667
18 201709358631
19 925531659971
20 4255568177615
21 19604179972363
22 90468636882231
23 418164385032723
24 1935725673812575
25 8973094439246811
26 41648668456569671

List of values

[1, 3, 11, 43, 175, 731, 3111, 13427, 58591, 257947, 1143943, 5104419, 22896303, 103169899, 466725143, 2118787187, 9648585791, 44060516667, 201709358631, 925531659971, 4255568177615, 19604179972363, 90468636882231, 418164385032723, 1935725673812575, 8973094439246811, 41648668456569671]