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.

A273731 Number of permutations of n elements divided by the number of ternary heaps on n+1 elements.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 3
6 4
7 8
8 12
9 16
10 32
11 48
12 64
13 160
14 288
15 448
16 1024
17 1728
18 2560
19 5632
20 9216
21 13312
22 33280
23 59904
24 93184
25 212992
26 359424
27 532480
28 1171456
29 1916928
30 2768896
31 6922240
32 12460032
33 19382272
34 44302336
35 74760192
36 110755840
37 243662848
38 398721024
39 575930368

List of values

[1, 1, 1, 1, 2, 3, 4, 8, 12, 16, 32, 48, 64, 160, 288, 448, 1024, 1728, 2560, 5632, 9216, 13312, 33280, 59904, 93184, 212992, 359424, 532480, 1171456, 1916928, 2768896, 6922240, 12460032, 19382272, 44302336, 74760192, 110755840, 243662848, 398721024, 575930368]