A001033 - cp's OEIS frontend

A001033 Numbers n such that the sum of the squares of n consecutive positive odd numbers x^2 + (x+2)^2 + ... + (x+2n-2)^2 = k^2 for some integer k. The least values of x and k for each n are in A056131 and A056132, respectively.

n	a(n)
1	1
2	16
3	25
4	33
5	49
6	52
7	64
8	73
9	97
10	100
11	121
12	148
13	169
14	177
15	193
16	196
17	241
18	244
19	249
20	256
21	276
22	289
23	292
24	297
25	313
26	337
27	361
28	388
29	393
30	400
31	409
32	457
33	481
34	484
35	528
36	529
37	537
38	577
39	592
40	625
41	628
42	649
43	673
44	676
45	708
46	724
47	753
48	772
49	784
50	793
51	832
52	841
53	852
54	897
55	913
56	961
57	964
58	976
59	996

[1, 16, 25, 33, 49, 52, 64, 73, 97, 100, 121, 148, 169, 177, 193, 196, 241, 244, 249, 256, 276, 289, 292, 297, 313, 337, 361, 388, 393, 400, 409, 457, 481, 484, 528, 529, 537, 577, 592, 625, 628, 649, 673, 676, 708, 724, 753, 772, 784, 793, 832, 841, 852, 897, 913, 961, 964, 976, 996]

cp's OEIS Frontend

A001033 Numbers n such that the sum of the squares of n consecutive positive odd numbers x^2 + (x+2)^2 + ... + (x+2n-2)^2 = k^2 for some integer k. The least values of x and k for each n are in A056131 and A056132, respectively.

Table of values

List of values

n	a(n)
1	1
2	16
3	25
4	33
5	49
6	52
7	64
8	73
9	97
10	100
11	121
12	148
13	169
14	177
15	193
16	196
17	241
18	244
19	249
20	256
21	276
22	289
23	292
24	297
25	313
26	337
27	361
28	388
29	393
30	400
31	409
32	457
33	481
34	484
35	528
36	529
37	537
38	577
39	592
40	625
41	628
42	649
43	673
44	676
45	708
46	724
47	753
48	772
49	784
50	793
51	832
52	841
53	852
54	897
55	913
56	961
57	964
58	976
59	996

n	a(n)
1	1
2	16
3	25
4	33
5	49
6	52
7	64
8	73
9	97
10	100
11	121
12	148
13	169
14	177
15	193
16	196
17	241
18	244
19	249
20	256
21	276
22	289
23	292
24	297
25	313
26	337
27	361
28	388
29	393
30	400
31	409
32	457
33	481
34	484
35	528
36	529
37	537
38	577
39	592
40	625
41	628
42	649
43	673
44	676
45	708
46	724
47	753
48	772
49	784
50	793
51	832
52	841
53	852
54	897
55	913
56	961
57	964
58	976
59	996

n	a(n)
1	1
2	16
3	25
4	33
5	49
6	52
7	64
8	73
9	97
10	100
11	121
12	148
13	169
14	177
15	193
16	196
17	241
18	244
19	249
20	256
21	276
22	289
23	292
24	297
25	313
26	337
27	361
28	388
29	393
30	400
31	409
32	457
33	481
34	484
35	528
36	529
37	537
38	577
39	592
40	625
41	628
42	649
43	673
44	676
45	708
46	724
47	753
48	772
49	784
50	793
51	832
52	841
53	852
54	897
55	913
56	961
57	964
58	976
59	996