A364757 - cp's OEIS frontend

A364757 The pyramidal array T(r,g,b) = (r+g+b)/((g+b)(r+b))C(r+g,b-1)C(g+b,r)C(r+b,g), where 1 <= b <= ceiling((r+g+b)/2) and 0 <= r,g <= floor((r+g+b)/2). Read first over the layers corresponding to fixed sum r+g+b, then over the diagonals corresponding to fixed b.

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	1
7	2
8	2
9	1
10	8
11	1
12	5
13	15
14	15
15	1
16	5
17	1
18	3
19	3
20	8
21	54
22	8
23	1
24	27
25	27
26	1
27	7
28	70
29	70
30	42
31	168
32	42
33	1
34	14
35	14
36	1
37	4
38	4
39	30
40	192
41	30
42	20
43	400
44	400
45	20
46	1
47	64
48	200
49	64
50	1
51	9
52	210
53	210
54	405
55	1500
56	405
57	90
58	900
59	900
60	90
61	1
62	30
63	81
64	30
65	1
66	5
67	5
68	80
69	500
70	80
71	147
72	2625
73	2625
74	147
75	40
76	1750
77	5000
78	1750
79	40
80	1
81	125
82	875
83	875
84	125
85	1

[1, 1, 1, 3, 1, 1, 2, 2, 1, 8, 1, 5, 15, 15, 1, 5, 1, 3, 3, 8, 54, 8, 1, 27, 27, 1, 7, 70, 70, 42, 168, 42, 1, 14, 14, 1, 4, 4, 30, 192, 30, 20, 400, 400, 20, 1, 64, 200, 64, 1, 9, 210, 210, 405, 1500, 405, 90, 900, 900, 90, 1, 30, 81, 30, 1, 5, 5, 80, 500, 80, 147, 2625, 2625, 147, 40, 1750, 5000, 1750, 40, 1, 125, 875, 875, 125, 1]

cp's OEIS Frontend

A364757 The pyramidal array T(r,g,b) = (r+g+b)/((g+b)(r+b))C(r+g,b-1)C(g+b,r)C(r+b,g), where 1 <= b <= ceiling((r+g+b)/2) and 0 <= r,g <= floor((r+g+b)/2). Read first over the layers corresponding to fixed sum r+g+b, then over the diagonals corresponding to fixed b.

Table of values

List of values

cp's OEIS Frontend

A364757 The pyramidal array T(r,g,b) = (r+g+b)/((g+b)*(r+b))*C(r+g,b-1)*C(g+b,r)*C(r+b,g), where 1 <= b <= ceiling((r+g+b)/2) and 0 <= r,g <= floor((r+g+b)/2). Read first over the layers corresponding to fixed sum r+g+b, then over the diagonals corresponding to fixed b.

Table of values

List of values

A364757 The pyramidal array T(r,g,b) = (r+g+b)/((g+b)(r+b))C(r+g,b-1)C(g+b,r)C(r+b,g), where 1 <= b <= ceiling((r+g+b)/2) and 0 <= r,g <= floor((r+g+b)/2). Read first over the layers corresponding to fixed sum r+g+b, then over the diagonals corresponding to fixed b.