A035310 - cp's OEIS frontend

A035310 Let f(n) = number of ways to factor n = A001055(n); a(n) = sum of f(k) over all terms k in A025487 that have n factors.

n	a(n)
1	1
2	4
3	12
4	47
5	170
6	750
7	3255
8	16010
9	81199
10	448156
11	2579626
12	15913058
13	102488024
14	698976419
15	4976098729
16	37195337408
17	289517846210
18	2352125666883
19	19841666995265
20	173888579505200
21	1577888354510786
22	14820132616197925
23	143746389756336173
24	1438846957477988926

[1, 4, 12, 47, 170, 750, 3255, 16010, 81199, 448156, 2579626, 15913058, 102488024, 698976419, 4976098729, 37195337408, 289517846210, 2352125666883, 19841666995265, 173888579505200, 1577888354510786, 14820132616197925, 143746389756336173, 1438846957477988926]

cp's OEIS Frontend

A035310 Let f(n) = number of ways to factor n = A001055(n); a(n) = sum of f(k) over all terms k in A025487 that have n factors.

Table of values

List of values