A212574 - cp's OEIS frontend

A212574 Number of (w,x,y,z) with all terms in {1,...,n} and |w-x|>=|x-y|+|y-z|.

n	a(n)
0	0
1	1
2	8
3	33
4	88
5	197
6	380
7	673
8	1104
9	1721
10	2560
11	3681
12	5128
13	6973
14	9268
15	12097
16	15520
17	19633
18	24504
19	30241
20	36920
21	44661
22	53548
23	63713
24	75248
25	88297
26	102960
27	119393
28	137704
29	158061
30	180580
31	205441
32	232768
33	262753
34	295528
35	331297

[0, 1, 8, 33, 88, 197, 380, 673, 1104, 1721, 2560, 3681, 5128, 6973, 9268, 12097, 15520, 19633, 24504, 30241, 36920, 44661, 53548, 63713, 75248, 88297, 102960, 119393, 137704, 158061, 180580, 205441, 232768, 262753, 295528, 331297]

cp's OEIS Frontend

A212574 Number of (w,x,y,z) with all terms in {1,...,n} and |w-x|>=|x-y|+|y-z|.

Table of values

List of values