A279456 - cp's OEIS frontend

A279456 Numbers k such that number of distinct primes dividing k is odd and number of prime divisors (counted with multiplicity) of k is even.

n	a(n)
1	4
2	9
3	16
4	25
5	49
6	60
7	64
8	81
9	84
10	90
11	121
12	126
13	132
14	140
15	150
16	156
17	169
18	198
19	204
20	220
21	228
22	234
23	240
24	256
25	260
26	276
27	289
28	294
29	306
30	308
31	315
32	336
33	340
34	342
35	348
36	350
37	360
38	361
39	364
40	372
41	380
42	414
43	444
44	460
45	476
46	490
47	492
48	495
49	504
50	516
51	522
52	525
53	528
54	529
55	532
56	540
57	550
58	558
59	560
60	564
61	572
62	580
63	585
64	600

[4, 9, 16, 25, 49, 60, 64, 81, 84, 90, 121, 126, 132, 140, 150, 156, 169, 198, 204, 220, 228, 234, 240, 256, 260, 276, 289, 294, 306, 308, 315, 336, 340, 342, 348, 350, 360, 361, 364, 372, 380, 414, 444, 460, 476, 490, 492, 495, 504, 516, 522, 525, 528, 529, 532, 540, 550, 558, 560, 564, 572, 580, 585, 600]

cp's OEIS Frontend

A279456 Numbers k such that number of distinct primes dividing k is odd and number of prime divisors (counted with multiplicity) of k is even.

Table of values

List of values

n	a(n)
1	4
2	9
3	16
4	25
5	49
6	60
7	64
8	81
9	84
10	90
11	121
12	126
13	132
14	140
15	150
16	156
17	169
18	198
19	204
20	220
21	228
22	234
23	240
24	256
25	260
26	276
27	289
28	294
29	306
30	308
31	315
32	336
33	340
34	342
35	348
36	350
37	360
38	361
39	364
40	372
41	380
42	414
43	444
44	460
45	476
46	490
47	492
48	495
49	504
50	516
51	522
52	525
53	528
54	529
55	532
56	540
57	550
58	558
59	560
60	564
61	572
62	580
63	585
64	600

n	a(n)
1	4
2	9
3	16
4	25
5	49
6	60
7	64
8	81
9	84
10	90
11	121
12	126
13	132
14	140
15	150
16	156
17	169
18	198
19	204
20	220
21	228
22	234
23	240
24	256
25	260
26	276
27	289
28	294
29	306
30	308
31	315
32	336
33	340
34	342
35	348
36	350
37	360
38	361
39	364
40	372
41	380
42	414
43	444
44	460
45	476
46	490
47	492
48	495
49	504
50	516
51	522
52	525
53	528
54	529
55	532
56	540
57	550
58	558
59	560
60	564
61	572
62	580
63	585
64	600

n	a(n)
1	4
2	9
3	16
4	25
5	49
6	60
7	64
8	81
9	84
10	90
11	121
12	126
13	132
14	140
15	150
16	156
17	169
18	198
19	204
20	220
21	228
22	234
23	240
24	256
25	260
26	276
27	289
28	294
29	306
30	308
31	315
32	336
33	340
34	342
35	348
36	350
37	360
38	361
39	364
40	372
41	380
42	414
43	444
44	460
45	476
46	490
47	492
48	495
49	504
50	516
51	522
52	525
53	528
54	529
55	532
56	540
57	550
58	558
59	560
60	564
61	572
62	580
63	585
64	600