A211425 - cp's OEIS frontend

A211425 Number of ordered triples (w,x,y) with all terms in {-n,...,0,...,n} and w^2+4xy=0.

n	a(n)
0	1
1	5
2	13
3	17
4	33
5	37
6	45
7	49
8	65
9	77
10	85
11	89
12	113
13	117
14	125
15	129
16	153
17	157
18	173
19	177
20	193
21	197
22	205
23	209
24	241
25	261
26	269
27	281
28	297
29	301
30	317
31	321
32	345
33	349
34	357
35	361
36	401
37	405
38	413
39	417
40	441
41	445
42	453
43	457
44	473
45	485
46	493
47	497
48	537
49	565
50	589
51	593
52	609

[1, 5, 13, 17, 33, 37, 45, 49, 65, 77, 85, 89, 113, 117, 125, 129, 153, 157, 173, 177, 193, 197, 205, 209, 241, 261, 269, 281, 297, 301, 317, 321, 345, 349, 357, 361, 401, 405, 413, 417, 441, 445, 453, 457, 473, 485, 493, 497, 537, 565, 589, 593, 609]

cp's OEIS Frontend

A211425 Number of ordered triples (w,x,y) with all terms in {-n,...,0,...,n} and w^2+4xy=0.

Table of values

List of values

n	a(n)
0	1
1	5
2	13
3	17
4	33
5	37
6	45
7	49
8	65
9	77
10	85
11	89
12	113
13	117
14	125
15	129
16	153
17	157
18	173
19	177
20	193
21	197
22	205
23	209
24	241
25	261
26	269
27	281
28	297
29	301
30	317
31	321
32	345
33	349
34	357
35	361
36	401
37	405
38	413
39	417
40	441
41	445
42	453
43	457
44	473
45	485
46	493
47	497
48	537
49	565
50	589
51	593
52	609

n	a(n)
0	1
1	5
2	13
3	17
4	33
5	37
6	45
7	49
8	65
9	77
10	85
11	89
12	113
13	117
14	125
15	129
16	153
17	157
18	173
19	177
20	193
21	197
22	205
23	209
24	241
25	261
26	269
27	281
28	297
29	301
30	317
31	321
32	345
33	349
34	357
35	361
36	401
37	405
38	413
39	417
40	441
41	445
42	453
43	457
44	473
45	485
46	493
47	497
48	537
49	565
50	589
51	593
52	609

cp's OEIS Frontend

A211425 Number of ordered triples (w,x,y) with all terms in {-n,...,0,...,n} and w^2+4*x*y=0.

Table of values

List of values

A211425 Number of ordered triples (w,x,y) with all terms in {-n,...,0,...,n} and w^2+4xy=0.

n	a(n)
0	1
1	5
2	13
3	17
4	33
5	37
6	45
7	49
8	65
9	77
10	85
11	89
12	113
13	117
14	125
15	129
16	153
17	157
18	173
19	177
20	193
21	197
22	205
23	209
24	241
25	261
26	269
27	281
28	297
29	301
30	317
31	321
32	345
33	349
34	357
35	361
36	401
37	405
38	413
39	417
40	441
41	445
42	453
43	457
44	473
45	485
46	493
47	497
48	537
49	565
50	589
51	593
52	609