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.

A345023 a(n) is the surface area of the symmetric tower described in A221529 which is a polycube whose successive terraces are the symmetric representation of sigma A000203(i) (from i = 1 to n) starting from the top and the levels of these terraces are the partition numbers A000041(h-1) (from h = 1 to n) starting from the base.

Table of values

n a(n)
1 6
2 16
3 32
4 58
5 90
6 142
7 202
8 292
9 406
10 562
11 754
12 1034
13 1370
14 1822
15 2410
16 3176
17 4136
18 5402
19 6982
20 9026
21 11598
22 14838
23 18894
24 24034
25 30396
26 38312
27 48136
28 60288
29 75220
30 93624
31 116104
32 143598
33 177090
34 217770
35 267106
36 326820
37 398804
38 485472
39 589644
40 714564
41 864000
42 1042524
43 1255308

List of values

[6, 16, 32, 58, 90, 142, 202, 292, 406, 562, 754, 1034, 1370, 1822, 2410, 3176, 4136, 5402, 6982, 9026, 11598, 14838, 18894, 24034, 30396, 38312, 48136, 60288, 75220, 93624, 116104, 143598, 177090, 217770, 267106, 326820, 398804, 485472, 589644, 714564, 864000, 1042524, 1255308]

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

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