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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.

A185779 Third accumulation array of Pascal's triangle (as a rectangle), by antidiagonals.

Table of values

n a(n)
1 1
2 4
3 4
4 10
5 17
6 10
7 20
8 45
9 45
10 20
11 35
12 95
13 126
14 95
15 35
16 56
17 175
18 281
19 281
20 175
21 56
22 84
23 294
24 546
25 662
26 546
27 294
28 84
29 120
30 462
31 966
32 1358
33 1358
34 966
35 462
36 120
37 165
38 690
39 1596
40 2534
41 2941
42 2534
43 1596
44 690
45 165
46 220
47 990
48 2502
49 4410
50 5790
51 5790
52 4410
53 2502
54 990
55 220
56 286
57 1375
58 3762
59 7272
60 10620
61 12021
62 10620
63 7272
64 3762
65 1375
66 286
67 364
68 1859
69 5467
70 11484
71 18432
72 23229
73 23229
74 18432
75 11484
76 5467
77 1859
78 364
79 455

List of values

[1, 4, 4, 10, 17, 10, 20, 45, 45, 20, 35, 95, 126, 95, 35, 56, 175, 281, 281, 175, 56, 84, 294, 546, 662, 546, 294, 84, 120, 462, 966, 1358, 1358, 966, 462, 120, 165, 690, 1596, 2534, 2941, 2534, 1596, 690, 165, 220, 990, 2502, 4410, 5790, 5790, 4410, 2502, 990, 220, 286, 1375, 3762, 7272, 10620, 12021, 10620, 7272, 3762, 1375, 286, 364, 1859, 5467, 11484, 18432, 23229, 23229, 18432, 11484, 5467, 1859, 364, 455]