A212689 - cp's OEIS frontend

A212689 Number of (w,x,y,z) with all terms in {1,...,n} and 2|w-x|>n+|y-z|.

n	a(n)
0	0
1	0
2	0
3	6
4	20
5	58
6	124
7	244
8	424
9	700
10	1080
11	1610
12	2300
13	3206
14	4340
15	5768
16	7504
17	9624
18	12144
19	15150
20	18660
21	22770
22	27500
23	32956
24	39160
25	46228
26	54184
27	63154
28	73164
29	84350
30	96740
31	110480
32	125600
33	142256
34	160480
35	180438
36	202164
37	225834

[0, 0, 0, 6, 20, 58, 124, 244, 424, 700, 1080, 1610, 2300, 3206, 4340, 5768, 7504, 9624, 12144, 15150, 18660, 22770, 27500, 32956, 39160, 46228, 54184, 63154, 73164, 84350, 96740, 110480, 125600, 142256, 160480, 180438, 202164, 225834]

cp's OEIS Frontend

A212689 Number of (w,x,y,z) with all terms in {1,...,n} and 2|w-x|>n+|y-z|.

Table of values

List of values