A081779 - cp's OEIS frontend

A081779 Ordered m for which m = k^3ab*(a^4 - b^4) determine (unique) solution triples(k,a,b), where k=1,2,3,... and (a,b) are coprime pairs, not both odd (i.e., of opposite parity).

n	a(n)
1	30
2	240
3	390
4	810
5	1020
6	1920
7	2100
8	3120
9	3750
10	6090
11	6480
12	7380
13	7770
14	8160
15	10290
16	10530
17	15360
18	16800
19	20130
20	21870
21	24960
22	27540
23	30000
24	32760
25	33390
26	39930
27	46410
28	48720
29	48750
30	51840
31	56700
32	59040
33	60060
34	62160
35	65280
36	65910
37	82320
38	84240
39	94920
40	96360

[30, 240, 390, 810, 1020, 1920, 2100, 3120, 3750, 6090, 6480, 7380, 7770, 8160, 10290, 10530, 15360, 16800, 20130, 21870, 24960, 27540, 30000, 32760, 33390, 39930, 46410, 48720, 48750, 51840, 56700, 59040, 60060, 62160, 65280, 65910, 82320, 84240, 94920, 96360]

cp's OEIS Frontend

A081779 Ordered m for which m = k^3ab*(a^4 - b^4) determine (unique) solution triples(k,a,b), where k=1,2,3,... and (a,b) are coprime pairs, not both odd (i.e., of opposite parity).

Table of values

List of values

cp's OEIS Frontend

A081779 Ordered m for which m = k^3*a*b*(a^4 - b^4) determine (unique) solution triples(k,a,b), where k=1,2,3,... and (a,b) are coprime pairs, not both odd (i.e., of opposite parity).

Table of values

List of values

A081779 Ordered m for which m = k^3ab*(a^4 - b^4) determine (unique) solution triples(k,a,b), where k=1,2,3,... and (a,b) are coprime pairs, not both odd (i.e., of opposite parity).