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.

A382162 Number of pairs (i,j), 1 <= i < j <= n such that A019444(i) < A019444(j).

Table of values

n a(n)
1 0
2 1
3 2
4 5
5 9
6 12
7 18
8 22
9 30
10 39
11 45
12 56
13 68
14 76
15 90
16 99
17 115
18 132
19 143
20 162
21 174
22 195
23 217
24 231
25 255
26 280
27 296
28 323
29 340
30 369
31 399
32 418
33 450
34 483
35 504
36 539
37 561
38 598
39 636
40 660
41 700
42 725
43 767
44 810
45 837
46 882
47 928
48 957
49 1005
50 1035
51 1085
52 1136
53 1168
54 1221
55 1254
56 1309
57 1365
58 1400
59 1458
60 1517
61 1554
62 1615
63 1653
64 1716
65 1780
66 1820

List of values

[0, 1, 2, 5, 9, 12, 18, 22, 30, 39, 45, 56, 68, 76, 90, 99, 115, 132, 143, 162, 174, 195, 217, 231, 255, 280, 296, 323, 340, 369, 399, 418, 450, 483, 504, 539, 561, 598, 636, 660, 700, 725, 767, 810, 837, 882, 928, 957, 1005, 1035, 1085, 1136, 1168, 1221, 1254, 1309, 1365, 1400, 1458, 1517, 1554, 1615, 1653, 1716, 1780, 1820]