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.

A141689 Average of Eulerian numbers (A008292) and Pascal's triangle (A007318): t(n,m) = (A008292(n,m) + A007318(n,m))/2.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 3
6 1
7 1
8 7
9 7
10 1
11 1
12 15
13 36
14 15
15 1
16 1
17 31
18 156
19 156
20 31
21 1
22 1
23 63
24 603
25 1218
26 603
27 63
28 1
29 1
30 127
31 2157
32 7827
33 7827
34 2157
35 127
36 1
37 1
38 255
39 7318
40 44145
41 78130
42 44145
43 7318
44 255
45 1
46 1
47 511
48 23938
49 227638
50 655240
51 655240
52 227638
53 23938
54 511
55 1

List of values

[1, 1, 1, 1, 3, 1, 1, 7, 7, 1, 1, 15, 36, 15, 1, 1, 31, 156, 156, 31, 1, 1, 63, 603, 1218, 603, 63, 1, 1, 127, 2157, 7827, 7827, 2157, 127, 1, 1, 255, 7318, 44145, 78130, 44145, 7318, 255, 1, 1, 511, 23938, 227638, 655240, 655240, 227638, 23938, 511, 1]