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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.

A322291 Triangle T read by rows: T(n, k) = Sum_{i=1..k} binomial(n, floor((n-k)/2)+i).

Table of values

n a(n)
1 1
2 2
3 3
4 3
5 6
6 7
7 6
8 10
9 14
10 15
11 10
12 20
13 25
14 30
15 31
16 20
17 35
18 50
19 56
20 62
21 63
22 35
23 70
24 91
25 112
26 119
27 126
28 127
29 70
30 126
31 182
32 210
33 238
34 246
35 254
36 255
37 126
38 252
39 336
40 420
41 456
42 492
43 501
44 510
45 511
46 252
47 462
48 672
49 792
50 912
51 957
52 1002
53 1012
54 1022
55 1023
56 462
57 924
58 1254
59 1584
60 1749
61 1914
62 1969
63 2024
64 2035
65 2046
66 2047

List of values

[1, 2, 3, 3, 6, 7, 6, 10, 14, 15, 10, 20, 25, 30, 31, 20, 35, 50, 56, 62, 63, 35, 70, 91, 112, 119, 126, 127, 70, 126, 182, 210, 238, 246, 254, 255, 126, 252, 336, 420, 456, 492, 501, 510, 511, 252, 462, 672, 792, 912, 957, 1002, 1012, 1022, 1023, 462, 924, 1254, 1584, 1749, 1914, 1969, 2024, 2035, 2046, 2047]