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.

A057153 Construct difference array so that (1) first row begins with 1, (2) every row is monotonic increasing, (3) no number appears more than once, (4) smallest number not yet used begins a new row. Sequence gives first row of array.

Table of values

n a(n)
1 1
2 3
3 9
4 26
5 73
6 194
7 485
8 1150
9 2617
10 5779
11 12497
12 26653
13 56355
14 118545
15 248605
16 520365
17 1087853
18 2272770
19 4748677
20 9930475
21 20800122
22 43658310
23 91836751
24 193549010
25 408449129
26 862455193
27 1820771343
28 3840569196
29 8089327515

List of values

[1, 3, 9, 26, 73, 194, 485, 1150, 2617, 5779, 12497, 26653, 56355, 118545, 248605, 520365, 1087853, 2272770, 4748677, 9930475, 20800122, 43658310, 91836751, 193549010, 408449129, 862455193, 1820771343, 3840569196, 8089327515]