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.

A055879 Least nondecreasing sequence with a(1) = 1 and Hankel transform {1,1,1,1,...}.

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 5
6 5
7 15
8 15
9 51
10 51
11 188
12 188
13 731
14 731
15 2950
16 2950
17 12235
18 12235
19 51822
20 51822
21 223191
22 223191
23 974427
24 974427
25 4302645
26 4302645
27 19181100
28 19181100
29 86211885
30 86211885
31 390248055
32 390248055
33 1777495635
34 1777495635
35 8140539950
36 8140539950

List of values

[1, 1, 2, 2, 5, 5, 15, 15, 51, 51, 188, 188, 731, 731, 2950, 2950, 12235, 12235, 51822, 51822, 223191, 223191, 974427, 974427, 4302645, 4302645, 19181100, 19181100, 86211885, 86211885, 390248055, 390248055, 1777495635, 1777495635, 8140539950, 8140539950]

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

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