A212247 - cp's OEIS frontend

A212247 Number of (w,x,y,z) with all terms in {1,...,n} and 3w=x+y+z+n.

n	a(n)
0	0
1	1
2	4
3	13
4	29
5	56
6	95
7	150
8	222
9	315
10	430
11	571
12	739
13	938
14	1169
15	1436
16	1740
17	2085
18	2472
19	2905
20	3385
21	3916
22	4499
23	5138
24	5834
25	6591
26	7410
27	8295
28	9247
29	10270
30	11365
31	12536
32	13784
33	15113
34	16524
35	18021
36	19605
37	21280
38	23047
39	24910
40	26870
41	28931

[0, 1, 4, 13, 29, 56, 95, 150, 222, 315, 430, 571, 739, 938, 1169, 1436, 1740, 2085, 2472, 2905, 3385, 3916, 4499, 5138, 5834, 6591, 7410, 8295, 9247, 10270, 11365, 12536, 13784, 15113, 16524, 18021, 19605, 21280, 23047, 24910, 26870, 28931]

cp's OEIS Frontend

A212247 Number of (w,x,y,z) with all terms in {1,...,n} and 3w=x+y+z+n.

Table of values

List of values