A212675 - cp's OEIS frontend

A212675 Number of (w,x,y,z) with all terms in {1,...,n} and w >= |x-y| + |y-z|.

n	a(n)
0	0
1	1
2	14
3	57
4	158
5	353
6	688
7	1217
8	2004
9	3121
10	4650
11	6681
12	9314
13	12657
14	16828
15	21953
16	28168
17	35617
18	44454
19	54841
20	66950
21	80961
22	97064
23	115457
24	136348
25	159953
26	186498
27	216217
28	249354
29	286161
30	326900
31	371841
32	421264
33	475457
34	534718

[0, 1, 14, 57, 158, 353, 688, 1217, 2004, 3121, 4650, 6681, 9314, 12657, 16828, 21953, 28168, 35617, 44454, 54841, 66950, 80961, 97064, 115457, 136348, 159953, 186498, 216217, 249354, 286161, 326900, 371841, 421264, 475457, 534718]

cp's OEIS Frontend

A212675 Number of (w,x,y,z) with all terms in {1,...,n} and w >= |x-y| + |y-z|.

Table of values

List of values