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.

A216053 a(n) is the position of the last two-tuple within the reverse lexicographic set of partitions of 2n and 2n+1, with a(1)-a(n) representing the positions of every 2-tuple partition of 2n and 2n+1.

Table of values

n a(n)
1 2
2 3
3 5
4 8
5 13
6 20
7 31
8 46
9 68
10 98
11 140
12 196
13 273
14 374
15 509
16 685
17 916
18 1213
19 1598
20 2088
21 2715
22 3507
23 4509
24 5764
25 7339
26 9297
27 11733
28 14743
29 18461
30 23026
31 28630
32 35472
33 43821
34 53964
35 66274
36 81157
37 99134
38 120771
39 146786
40 177971
41 215309
42 259892
43 313066
44 376327

List of values

[2, 3, 5, 8, 13, 20, 31, 46, 68, 98, 140, 196, 273, 374, 509, 685, 916, 1213, 1598, 2088, 2715, 3507, 4509, 5764, 7339, 9297, 11733, 14743, 18461, 23026, 28630, 35472, 43821, 53964, 66274, 81157, 99134, 120771, 146786, 177971, 215309, 259892, 313066, 376327]