A211623 - cp's OEIS frontend

A211623 Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and -1<=w+2x+3y<=1.

n	a(n)
0	0
1	2
2	12
3	28
4	54
5	86
6	128
7	176
8	234
9	298
10	372
11	452
12	542
13	638
14	744
15	856
16	978
17	1106
18	1244
19	1388
20	1542
21	1702
22	1872
23	2048
24	2234
25	2426
26	2628
27	2836
28	3054
29	3278
30	3512
31	3752
32	4002
33	4258
34	4524
35	4796
36	5078
37	5366
38	5664
39	5968
40	6282
41	6602
42	6932
43	7268
44	7614
45	7966
46	8328

[0, 2, 12, 28, 54, 86, 128, 176, 234, 298, 372, 452, 542, 638, 744, 856, 978, 1106, 1244, 1388, 1542, 1702, 1872, 2048, 2234, 2426, 2628, 2836, 3054, 3278, 3512, 3752, 4002, 4258, 4524, 4796, 5078, 5366, 5664, 5968, 6282, 6602, 6932, 7268, 7614, 7966, 8328]

cp's OEIS Frontend

A211623 Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and -1<=w+2x+3y<=1.

Table of values

List of values