A210503 - cp's OEIS frontend

A210503 Numbers k that form a primitive Pythagorean triple with k' and sqrt(k^2 + k'^2), where k' is the arithmetic derivative of k.

n	a(n)
1	15
2	35
3	143
4	323
5	899
6	1763
7	3599
8	4641
9	5183
10	10403
11	11663
12	13585
13	19043
14	22499
15	32399
16	35581
17	36863
18	39203
19	51983
20	57599
21	72899
22	79523
23	97343
24	121103
25	176399
26	186623
27	213443
28	272483
29	324899
30	359999
31	381923
32	412163
33	435599
34	446641
35	622081
36	656099
37	675683

[15, 35, 143, 323, 899, 1763, 3599, 4641, 5183, 10403, 11663, 13585, 19043, 22499, 32399, 35581, 36863, 39203, 51983, 57599, 72899, 79523, 97343, 121103, 176399, 186623, 213443, 272483, 324899, 359999, 381923, 412163, 435599, 446641, 622081, 656099, 675683]

cp's OEIS Frontend

A210503 Numbers k that form a primitive Pythagorean triple with k' and sqrt(k^2 + k'^2), where k' is the arithmetic derivative of k.

Table of values

List of values