A173651 - cp's OEIS frontend

A173651 Triangle T(n,m) read by rows: numerator of 1/(n-m)^2-1/m^2, or -1 if m=0.

n	a(n)
1	-1
2	-1
3	0
4	-1
5	-3
6	3
7	-1
8	-8
9	0
10	8
11	-1
12	-15
13	-5
14	5
15	15
16	-1
17	-24
18	-3
19	0
20	3
21	24
22	-1
23	-35
24	-21
25	-7
26	7
27	21
28	35
29	-1
30	-48
31	-2
32	-16
33	0
34	16
35	2
36	48
37	-1
38	-63
39	-45
40	-1
41	-9
42	9
43	1
44	45
45	63
46	-1
47	-80
48	-15
49	-40
50	-5
51	0
52	5
53	40
54	15
55	80
56	-1
57	-99
58	-77
59	-55
60	-33
61	-11
62	11
63	33
64	55
65	77
66	99
67	-1
68	-120
69	-6
70	-8
71	-3
72	-24
73	0
74	24
75	3
76	8
77	6
78	120
79	-1
80	-143
81	-117
82	-91
83	-65
84	-39
85	-13
86	13
87	39
88	65
89	91
90	117
91	143
92	-1
93	-168
94	-35
95	-112
96	-21
97	-56
98	-7
99	0
100	7
101	56
102	21
103	112
104	35
105	168
106	-1
107	-195
108	-165
109	-5
110	-105
111	-3
112	-5
113	-15

[-1, -1, 0, -1, -3, 3, -1, -8, 0, 8, -1, -15, -5, 5, 15, -1, -24, -3, 0, 3, 24, -1, -35, -21, -7, 7, 21, 35, -1, -48, -2, -16, 0, 16, 2, 48, -1, -63, -45, -1, -9, 9, 1, 45, 63, -1, -80, -15, -40, -5, 0, 5, 40, 15, 80, -1, -99, -77, -55, -33, -11, 11, 33, 55, 77, 99, -1, -120, -6, -8, -3, -24, 0, 24, 3, 8, 6, 120, -1, -143, -117, -91, -65, -39, -13, 13, 39, 65, 91, 117, 143, -1, -168, -35, -112, -21, -56, -7, 0, 7, 56, 21, 112, 35, 168, -1, -195, -165, -5, -105, -3, -5, -15]

cp's OEIS Frontend

A173651 Triangle T(n,m) read by rows: numerator of 1/(n-m)^2-1/m^2, or -1 if m=0.

Table of values

List of values