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.

A074909 Running sum of Pascal's triangle (A007318), or beheaded Pascal's triangle read by beheaded rows.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 3
5 3
6 1
7 4
8 6
9 4
10 1
11 5
12 10
13 10
14 5
15 1
16 6
17 15
18 20
19 15
20 6
21 1
22 7
23 21
24 35
25 35
26 21
27 7
28 1
29 8
30 28
31 56
32 70
33 56
34 28
35 8
36 1
37 9
38 36
39 84
40 126
41 126
42 84
43 36
44 9
45 1
46 10
47 45
48 120
49 210
50 252
51 210
52 120
53 45
54 10
55 1
56 11
57 55
58 165
59 330
60 462
61 462
62 330
63 165
64 55
65 11

List of values

[1, 1, 2, 1, 3, 3, 1, 4, 6, 4, 1, 5, 10, 10, 5, 1, 6, 15, 20, 15, 6, 1, 7, 21, 35, 35, 21, 7, 1, 8, 28, 56, 70, 56, 28, 8, 1, 9, 36, 84, 126, 126, 84, 36, 9, 1, 10, 45, 120, 210, 252, 210, 120, 45, 10, 1, 11, 55, 165, 330, 462, 462, 330, 165, 55, 11]

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

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