A212576 - cp's OEIS frontend

A212576 Number of (w,x,y,z) with all terms in {1,...,n} and |w-x|=2|x-y|+2|y-z|.

n	a(n)
0	0
1	1
2	2
3	7
4	16
5	33
6	52
7	87
8	126
9	181
10	246
11	331
12	422
13	545
14	674
15	831
16	1006
17	1213
18	1428
19	1691
20	1964
21	2277
22	2614
23	2995
24	3388
25	3845
26	4314
27	4835
28	5388
29	5997
30	6620
31	7323
32	8042
33	8825
34	9646
35	10535
36	11442
37	12445
38	13466
39	14563
40	15706
41	16929
42	18172

[0, 1, 2, 7, 16, 33, 52, 87, 126, 181, 246, 331, 422, 545, 674, 831, 1006, 1213, 1428, 1691, 1964, 2277, 2614, 2995, 3388, 3845, 4314, 4835, 5388, 5997, 6620, 7323, 8042, 8825, 9646, 10535, 11442, 12445, 13466, 14563, 15706, 16929, 18172]

cp's OEIS Frontend

A212576 Number of (w,x,y,z) with all terms in {1,...,n} and |w-x|=2|x-y|+2|y-z|.

Table of values

List of values