A280061 - cp's OEIS frontend

A280061 a(0)=0; thereafter a(n) is the smallest prime not less than a(n-1) such that a(n - 1) + a(n) is a product of n primes.

n	a(n)
0	0
1	2
2	2
3	43
4	47
5	61
6	83
7	109
8	467
9	1453
10	2003
11	4909
12	18131
13	24877
14	32467
15	225581
16	603859
17	944429
18	1267411
19	1485101
20	2447059
21	9349421
22	25253587
23	53389613
24	88168147
25	100575533
26	151082707
27	989767981
28	3596703443
29	6738061613
30	6851483347

[0, 2, 2, 43, 47, 61, 83, 109, 467, 1453, 2003, 4909, 18131, 24877, 32467, 225581, 603859, 944429, 1267411, 1485101, 2447059, 9349421, 25253587, 53389613, 88168147, 100575533, 151082707, 989767981, 3596703443, 6738061613, 6851483347]

cp's OEIS Frontend

A280061 a(0)=0; thereafter a(n) is the smallest prime not less than a(n-1) such that a(n - 1) + a(n) is a product of n primes.

Table of values

List of values