A350275 - cp's OEIS frontend

A350275 Irregular triangle read by rows: T(n,k) is the number of endofunctions on [n] whose fourth-largest component has size exactly k; n >= 0, 0 <= k <= floor(n/4).

n	a(n)
0	1
1	1
2	4
3	27
4	255
5	1
6	3094
7	31
8	45865
9	791
10	803424
11	20119
12	16239720
13	528991
14	8505
15	372076163
16	14689441
17	654885
18	9529560676
19	435580164
20	34859160
21	269819334245
22	13846282341
23	1646054025
24	8369112382488
25	471890017358
26	73811825010
27	1286223400

[1, 1, 4, 27, 255, 1, 3094, 31, 45865, 791, 803424, 20119, 16239720, 528991, 8505, 372076163, 14689441, 654885, 9529560676, 435580164, 34859160, 269819334245, 13846282341, 1646054025, 8369112382488, 471890017358, 73811825010, 1286223400]

cp's OEIS Frontend

A350275 Irregular triangle read by rows: T(n,k) is the number of endofunctions on [n] whose fourth-largest component has size exactly k; n >= 0, 0 <= k <= floor(n/4).

Table of values

List of values