A155173 - cp's OEIS frontend

A155173 Short leg A of primitive Pythagorean triangles such that perimeter s is average of twin prime pairs, q=p+1, A=q^2-p^2, C=q^2+p^2, B=2pq, s=A+B+C; s -/+ 1 are primes.

n	a(n)
1	3
2	5
3	15
4	21
5	41
6	59
7	89
8	101
9	131
10	141
11	153
12	155
13	203
14	209
15	215
16	231
17	309
18	351
19	395
20	405
21	453
22	455
23	495
24	551
25	743
26	761
27	825
28	915
29	981
30	1001
31	1149
32	1193
33	1295
34	1343
35	1365
36	1421
37	1529
38	1659
39	1853
40	2105
41	2171
42	2205
43	2255
44	2373
45	2409
46	2411
47	2451
48	2513
49	2561
50	2649

[3, 5, 15, 21, 41, 59, 89, 101, 131, 141, 153, 155, 203, 209, 215, 231, 309, 351, 395, 405, 453, 455, 495, 551, 743, 761, 825, 915, 981, 1001, 1149, 1193, 1295, 1343, 1365, 1421, 1529, 1659, 1853, 2105, 2171, 2205, 2255, 2373, 2409, 2411, 2451, 2513, 2561, 2649]

cp's OEIS Frontend

A155173 Short leg A of primitive Pythagorean triangles such that perimeter s is average of twin prime pairs, q=p+1, A=q^2-p^2, C=q^2+p^2, B=2pq, s=A+B+C; s -/+ 1 are primes.

Table of values

List of values

cp's OEIS Frontend

A155173 Short leg A of primitive Pythagorean triangles such that perimeter s is average of twin prime pairs, q=p+1, A=q^2-p^2, C=q^2+p^2, B=2*p*q, s=A+B+C; s -/+ 1 are primes.

Table of values

List of values

A155173 Short leg A of primitive Pythagorean triangles such that perimeter s is average of twin prime pairs, q=p+1, A=q^2-p^2, C=q^2+p^2, B=2pq, s=A+B+C; s -/+ 1 are primes.