A195020 - cp's OEIS frontend

A195020 Vertex number of a square spiral in which the length of the first two edges are the legs of the primitive Pythagorean triple [3, 4, 5]. The edges of the spiral have length A195019.

n	a(n)
0	0
1	3
2	7
3	13
4	21
5	30
6	42
7	54
8	70
9	85
10	105
11	123
12	147
13	168
14	196
15	220
16	252
17	279
18	315
19	345
20	385
21	418
22	462
23	498
24	546
25	585
26	637
27	679
28	735
29	780
30	840
31	888
32	952
33	1003
34	1071
35	1125
36	1197
37	1254
38	1330
39	1390
40	1470
41	1533
42	1617
43	1683
44	1771
45	1840
46	1932
47	2004
48	2100

[0, 3, 7, 13, 21, 30, 42, 54, 70, 85, 105, 123, 147, 168, 196, 220, 252, 279, 315, 345, 385, 418, 462, 498, 546, 585, 637, 679, 735, 780, 840, 888, 952, 1003, 1071, 1125, 1197, 1254, 1330, 1390, 1470, 1533, 1617, 1683, 1771, 1840, 1932, 2004, 2100]

cp's OEIS Frontend

A195020 Vertex number of a square spiral in which the length of the first two edges are the legs of the primitive Pythagorean triple [3, 4, 5]. The edges of the spiral have length A195019.

Table of values

List of values