A339410 - cp's OEIS frontend

A339410 If the n-th semiprime is pq with p<=q primes, a(n) is the area of the triangle with vertices (1,p), (p,q) and (q,pq).

n	a(n)
1	1
2	1
3	6
4	2
5	9
6	8
7	6
8	35
9	40
10	54
11	10
12	104
13	54
14	135
15	24
16	209
17	126
18	64
19	70
20	90
21	350
22	405
23	72
24	154
25	594
26	190
27	740
28	64
29	819
30	280
31	216
32	330
33	989
34	54
35	1274
36	504
37	22
38	1595
39	256
40	550
41	1710
42	640
43	714
44	270
45	2079
46	874
47	2345
48	648
49	56
50	2484
51	90
52	2925
53	1144
54	286
55	3239
56	936
57	1450
58	3740
59	1560
60	216
61	832
62	4464

[1, 1, 6, 2, 9, 8, 6, 35, 40, 54, 10, 104, 54, 135, 24, 209, 126, 64, 70, 90, 350, 405, 72, 154, 594, 190, 740, 64, 819, 280, 216, 330, 989, 54, 1274, 504, 22, 1595, 256, 550, 1710, 640, 714, 270, 2079, 874, 2345, 648, 56, 2484, 90, 2925, 1144, 286, 3239, 936, 1450, 3740, 1560, 216, 832, 4464]

cp's OEIS Frontend

A339410 If the n-th semiprime is pq with p<=q primes, a(n) is the area of the triangle with vertices (1,p), (p,q) and (q,pq).

Table of values

List of values

cp's OEIS Frontend

A339410 If the n-th semiprime is p*q with p<=q primes, a(n) is the area of the triangle with vertices (1,p), (p,q) and (q,p*q).

Table of values

List of values

A339410 If the n-th semiprime is pq with p<=q primes, a(n) is the area of the triangle with vertices (1,p), (p,q) and (q,pq).