A203644 - cp's OEIS frontend

A203644 Number of arrays of n 0..13 integers with new values introduced in order 0..13 but otherwise unconstrained.

n	a(n)
1	1
2	2
3	5
4	15
5	52
6	203
7	877
8	4140
9	21147
10	115975
11	678570
12	4213597
13	27644437
14	190899322
15	1382958544
16	10480142026
17	82864861847
18	682076428809
19	5832727748374
20	51723682798067
21	474855882753977
22	4506342616999876
23	44142711725983660

[1, 2, 5, 15, 52, 203, 877, 4140, 21147, 115975, 678570, 4213597, 27644437, 190899322, 1382958544, 10480142026, 82864861847, 682076428809, 5832727748374, 51723682798067, 474855882753977, 4506342616999876, 44142711725983660]

cp's OEIS Frontend

A203644 Number of arrays of n 0..13 integers with new values introduced in order 0..13 but otherwise unconstrained.

Table of values

List of values