A189982 - cp's OEIS frontend

A189982 Numbers with prime signature (2,1,1,1), i.e., factorization pqr*s^2 with distinct primes p, q, r, s.

n	a(n)
1	420
2	630
3	660
4	780
5	924
6	990
7	1020
8	1050
9	1092
10	1140
11	1170
12	1380
13	1386
14	1428
15	1470
16	1530
17	1540
18	1596
19	1638
20	1650
21	1710
22	1716
23	1740
24	1820
25	1860
26	1932
27	1950
28	2070
29	2142
30	2220
31	2244
32	2380
33	2394
34	2436
35	2460
36	2508
37	2550
38	2574
39	2580
40	2604
41	2610
42	2652
43	2660
44	2790

[420, 630, 660, 780, 924, 990, 1020, 1050, 1092, 1140, 1170, 1380, 1386, 1428, 1470, 1530, 1540, 1596, 1638, 1650, 1710, 1716, 1740, 1820, 1860, 1932, 1950, 2070, 2142, 2220, 2244, 2380, 2394, 2436, 2460, 2508, 2550, 2574, 2580, 2604, 2610, 2652, 2660, 2790]

cp's OEIS Frontend

A189982 Numbers with prime signature (2,1,1,1), i.e., factorization pqr*s^2 with distinct primes p, q, r, s.

Table of values

List of values

cp's OEIS Frontend

A189982 Numbers with prime signature (2,1,1,1), i.e., factorization p*q*r*s^2 with distinct primes p, q, r, s.

Table of values

List of values

A189982 Numbers with prime signature (2,1,1,1), i.e., factorization pqr*s^2 with distinct primes p, q, r, s.