A354950 - cp's OEIS frontend

A354950 The number of squarefree numbers whose largest prime divisor is prime(n) and that are averages of twin prime pairs.

n	a(n)
1	0
2	1
3	1
4	1
5	2
6	2
7	3
8	7
9	4
10	9
11	20
12	31
13	57
14	88
15	139
16	282
17	421
18	806
19	1397
20	2572
21	4440
22	7863
23	14580
24	26211
25	47727
26	86929
27	159972
28	292650
29	542477
30	1000087
31	1850347
32	3432551
33	6381199

[0, 1, 1, 1, 2, 2, 3, 7, 4, 9, 20, 31, 57, 88, 139, 282, 421, 806, 1397, 2572, 4440, 7863, 14580, 26211, 47727, 86929, 159972, 292650, 542477, 1000087, 1850347, 3432551, 6381199]

cp's OEIS Frontend

A354950 The number of squarefree numbers whose largest prime divisor is prime(n) and that are averages of twin prime pairs.

Table of values

List of values