A098348 - cp's OEIS frontend

A098348 Triangular array read by rows: a(n, k) = number of ordered factorizations of a "hook-type" number with n total prime factors and k distinct prime factors. "Hook-type" means that only one prime can have multiplicity > 1.

n	a(n)
1	1
2	2
3	3
4	4
5	8
6	13
7	8
8	20
9	44
10	75
11	16
12	48
13	132
14	308
15	541
16	32
17	112
18	368
19	1076
20	2612
21	4683
22	64
23	256
24	976
25	3408
26	10404
27	25988
28	47293
29	128
30	576
31	2496
32	10096
33	36848
34	116180
35	296564
36	545835
37	256
38	1280
39	6208
40	28480
41	120400
42	454608
43	1469892
44	3816548

[1, 2, 3, 4, 8, 13, 8, 20, 44, 75, 16, 48, 132, 308, 541, 32, 112, 368, 1076, 2612, 4683, 64, 256, 976, 3408, 10404, 25988, 47293, 128, 576, 2496, 10096, 36848, 116180, 296564, 545835, 256, 1280, 6208, 28480, 120400, 454608, 1469892, 3816548]

cp's OEIS Frontend

A098348 Triangular array read by rows: a(n, k) = number of ordered factorizations of a "hook-type" number with n total prime factors and k distinct prime factors. "Hook-type" means that only one prime can have multiplicity > 1.

Table of values

List of values