A212573 - cp's OEIS frontend

A212573 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	0
2	2
3	10
4	36
5	92
6	202
7	386
8	680
9	1112
10	1730
11	2570
12	3692
13	5140
14	6986
15	9282
16	12112
17	15536
18	19650
19	24522
20	30260
21	36940
22	44682
23	53570
24	63736
25	75272
26	88322
27	102986
28	119420
29	137732
30	158090
31	180610
32	205472
33	232800
34	262786
35	295562
36	331332

[0, 0, 2, 10, 36, 92, 202, 386, 680, 1112, 1730, 2570, 3692, 5140, 6986, 9282, 12112, 15536, 19650, 24522, 30260, 36940, 44682, 53570, 63736, 75272, 88322, 102986, 119420, 137732, 158090, 180610, 205472, 232800, 262786, 295562, 331332]

cp's OEIS Frontend

A212573 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