A229108 - cp's OEIS frontend

A229108 Increasing a(n)is the smallest number of the form p^a*q^b, where a,b are positive integers and p < q are odd primes such that max( p^a, q^b)/min( p^a, q^b) <= 1 + 2/prime(n).

n	a(n)
2	15
3	35
4	63
5	143
6	323
7	575
8	675
9	783
10	899
11	1763
12	2303
13	3599
14	5183
15	6399
16	6723
17	10403
18	11663
19	15875
20	19043
21	22499
22	27221
23	28223
24	32399
25	36863
26	39203
27	50621
28	51983
29	53357
30	57599
31	58563
32	72899
33	77837
34	79523
35	95477
36	97343
37	119021
38	121103
39	123197
40	129599

[15, 35, 63, 143, 323, 575, 675, 783, 899, 1763, 2303, 3599, 5183, 6399, 6723, 10403, 11663, 15875, 19043, 22499, 27221, 28223, 32399, 36863, 39203, 50621, 51983, 53357, 57599, 58563, 72899, 77837, 79523, 95477, 97343, 119021, 121103, 123197, 129599]

cp's OEIS Frontend

A229108 Increasing a(n)is the smallest number of the form p^a*q^b, where a,b are positive integers and p < q are odd primes such that max( p^a, q^b)/min( p^a, q^b) <= 1 + 2/prime(n).

Table of values

List of values