A298121 - cp's OEIS frontend

A298121 a(n) is the number of triangles (up to congruence) with integer coordinates that have perimeter strictly less than n.

n	a(n)
4	1
5	3
6	5
7	11
8	18
9	29
10	44
11	70
12	94
13	136
14	177
15	243
16	303
17	386
18	485
19	611
20	738
21	914
22	1093
23	1312
24	1529
25	1831
26	2114
27	2488
28	2854
29	3310
30	3756
31	4307
32	4880
33	5520
34	6187
35	6995
36	7800
37	8738
38	9674
39	10797
40	11875
41	13161
42	14437
43	15901
44	17388
45	19087
46	20797
47	22706
48	24618
49	26811

[1, 3, 5, 11, 18, 29, 44, 70, 94, 136, 177, 243, 303, 386, 485, 611, 738, 914, 1093, 1312, 1529, 1831, 2114, 2488, 2854, 3310, 3756, 4307, 4880, 5520, 6187, 6995, 7800, 8738, 9674, 10797, 11875, 13161, 14437, 15901, 17388, 19087, 20797, 22706, 24618, 26811]

cp's OEIS Frontend

A298121 a(n) is the number of triangles (up to congruence) with integer coordinates that have perimeter strictly less than n.

Table of values

List of values