A216828 - cp's OEIS frontend

A216828 Numbers whose squares can be written in all the four forms a^2 + b^2, a^2 + 2b^2, a^2 + 3b^2 and a^2 + 7*b^2, with a > 0 and b > 0.

n	a(n)
1	60
2	68
3	110
4	111
5	120
6	136
7	143
8	156
9	164
10	174
11	180
12	193
13	204
14	215
15	220
16	222
17	226
18	240
19	272
20	274
21	286
22	292
23	300
24	312
25	318
26	327
27	328
28	330
29	333
30	335
31	337
32	340
33	348
34	356
35	360
36	374
37	380
38	385
39	386
40	388
41	407
42	408
43	420
44	429
45	430
46	440
47	444
48	452
49	457
50	466
51	468
52	476
53	480
54	492
55	522
56	540
57	544
58	548
59	550
60	551
61	555
62	559
63	562
64	572
65	579
66	584

[60, 68, 110, 111, 120, 136, 143, 156, 164, 174, 180, 193, 204, 215, 220, 222, 226, 240, 272, 274, 286, 292, 300, 312, 318, 327, 328, 330, 333, 335, 337, 340, 348, 356, 360, 374, 380, 385, 386, 388, 407, 408, 420, 429, 430, 440, 444, 452, 457, 466, 468, 476, 480, 492, 522, 540, 544, 548, 550, 551, 555, 559, 562, 572, 579, 584]

cp's OEIS Frontend

A216828 Numbers whose squares can be written in all the four forms a^2 + b^2, a^2 + 2b^2, a^2 + 3b^2 and a^2 + 7*b^2, with a > 0 and b > 0.

Table of values

List of values

n	a(n)
1	60
2	68
3	110
4	111
5	120
6	136
7	143
8	156
9	164
10	174
11	180
12	193
13	204
14	215
15	220
16	222
17	226
18	240
19	272
20	274
21	286
22	292
23	300
24	312
25	318
26	327
27	328
28	330
29	333
30	335
31	337
32	340
33	348
34	356
35	360
36	374
37	380
38	385
39	386
40	388
41	407
42	408
43	420
44	429
45	430
46	440
47	444
48	452
49	457
50	466
51	468
52	476
53	480
54	492
55	522
56	540
57	544
58	548
59	550
60	551
61	555
62	559
63	562
64	572
65	579
66	584

n	a(n)
1	60
2	68
3	110
4	111
5	120
6	136
7	143
8	156
9	164
10	174
11	180
12	193
13	204
14	215
15	220
16	222
17	226
18	240
19	272
20	274
21	286
22	292
23	300
24	312
25	318
26	327
27	328
28	330
29	333
30	335
31	337
32	340
33	348
34	356
35	360
36	374
37	380
38	385
39	386
40	388
41	407
42	408
43	420
44	429
45	430
46	440
47	444
48	452
49	457
50	466
51	468
52	476
53	480
54	492
55	522
56	540
57	544
58	548
59	550
60	551
61	555
62	559
63	562
64	572
65	579
66	584

cp's OEIS Frontend

A216828 Numbers whose squares can be written in all the four forms a^2 + b^2, a^2 + 2*b^2, a^2 + 3*b^2 and a^2 + 7*b^2, with a > 0 and b > 0.

Table of values

List of values

A216828 Numbers whose squares can be written in all the four forms a^2 + b^2, a^2 + 2b^2, a^2 + 3b^2 and a^2 + 7*b^2, with a > 0 and b > 0.

n	a(n)
1	60
2	68
3	110
4	111
5	120
6	136
7	143
8	156
9	164
10	174
11	180
12	193
13	204
14	215
15	220
16	222
17	226
18	240
19	272
20	274
21	286
22	292
23	300
24	312
25	318
26	327
27	328
28	330
29	333
30	335
31	337
32	340
33	348
34	356
35	360
36	374
37	380
38	385
39	386
40	388
41	407
42	408
43	420
44	429
45	430
46	440
47	444
48	452
49	457
50	466
51	468
52	476
53	480
54	492
55	522
56	540
57	544
58	548
59	550
60	551
61	555
62	559
63	562
64	572
65	579
66	584