A212069 - cp's OEIS frontend

A212069 Number of (w,x,y,z) with all terms in {1,...,n} and 3*w = x+y+z.

n	a(n)
0	0
1	1
2	2
3	9
4	22
5	41
6	72
7	115
8	170
9	243
10	334
11	443
12	576
13	733
14	914
15	1125
16	1366
17	1637
18	1944
19	2287
20	2666
21	3087
22	3550
23	4055
24	4608
25	5209
26	5858
27	6561
28	7318
29	8129
30	9000
31	9931
32	10922
33	11979
34	13102
35	14291
36	15552
37	16885
38	18290
39	19773
40	21334
41	22973

[0, 1, 2, 9, 22, 41, 72, 115, 170, 243, 334, 443, 576, 733, 914, 1125, 1366, 1637, 1944, 2287, 2666, 3087, 3550, 4055, 4608, 5209, 5858, 6561, 7318, 8129, 9000, 9931, 10922, 11979, 13102, 14291, 15552, 16885, 18290, 19773, 21334, 22973]

cp's OEIS Frontend

A212069 Number of (w,x,y,z) with all terms in {1,...,n} and 3*w = x+y+z.

Table of values

List of values