A356356 - cp's OEIS frontend

A356356 Triangle of number of rectangles in the interior of the rectangle with vertices (k,0), (0,k), (n,n+k) and (n+k,n), read by rows.

n	a(n)
1	0
2	1
3	9
4	2
5	19
6	51
7	3
8	29
9	86
10	166
11	4
12	39
13	121
14	250
15	410
16	5
17	49
18	156
19	334
20	575
21	855
22	6
23	59
24	191
25	418
26	740
27	1141
28	1589
29	7
30	69
31	226
32	502
33	905
34	1427
35	2044
36	2716
37	8
38	79
39	261
40	586
41	1070
42	1713
43	2499
44	3396
45	4356
46	9
47	89
48	296
49	670
50	1235
51	1999
52	2954
53	4076
54	5325
55	6645

[0, 1, 9, 2, 19, 51, 3, 29, 86, 166, 4, 39, 121, 250, 410, 5, 49, 156, 334, 575, 855, 6, 59, 191, 418, 740, 1141, 1589, 7, 69, 226, 502, 905, 1427, 2044, 2716, 8, 79, 261, 586, 1070, 1713, 2499, 3396, 4356, 9, 89, 296, 670, 1235, 1999, 2954, 4076, 5325, 6645]

cp's OEIS Frontend

A356356 Triangle of number of rectangles in the interior of the rectangle with vertices (k,0), (0,k), (n,n+k) and (n+k,n), read by rows.

Table of values

List of values