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.

A382168 Number of triples (i,j,k), 1 <= i < j < k <= n such that A019444(i) < A019444(k) < A019444(j).

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 1
6 7
7 7
8 17
9 17
10 17
11 38
12 38
13 38
14 74
15 74
16 119
17 119
18 119
19 185
20 185
21 263
22 263
23 263
24 368
25 368
26 368
27 504
28 504
29 657
30 657
31 657
32 847
33 847
34 847
35 1078
36 1078
37 1331
38 1331
39 1331
40 1631
41 1631
42 1956
43 1956
44 1956
45 2334
46 2334
47 2334
48 2769
49 2769
50 3234
51 3234
52 3234
53 3762
54 3762
55 4323
56 4323
57 4323
58 4953
59 4953
60 4953
61 5656
62 5656
63 6397
64 6397
65 6397

List of values

[0, 0, 1, 1, 1, 7, 7, 17, 17, 17, 38, 38, 38, 74, 74, 119, 119, 119, 185, 185, 263, 263, 263, 368, 368, 368, 504, 504, 657, 657, 657, 847, 847, 847, 1078, 1078, 1331, 1331, 1331, 1631, 1631, 1956, 1956, 1956, 2334, 2334, 2334, 2769, 2769, 3234, 3234, 3234, 3762, 3762, 4323, 4323, 4323, 4953, 4953, 4953, 5656, 5656, 6397, 6397, 6397]

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

Content is available under The OEIS End-User License Agreement.