A212054 - cp's OEIS frontend

A212054 Number of (w,x,y,z) with all terms in {1,...,n} and wx>yz+1.

n	a(n)
0	0
1	0
2	3
3	25
4	98
5	260
6	571
7	1089
8	1898
9	3084
10	4755
11	7017
12	9994
13	13836
14	18691
15	24705
16	32066
17	40964
18	51579
19	64145
20	78850
21	95956
22	115723
23	138385
24	164170
25	193436
26	226467
27	263521
28	304930
29	351076
30	402195
31	458777
32	521082
33	589532
34	664547

[0, 0, 3, 25, 98, 260, 571, 1089, 1898, 3084, 4755, 7017, 9994, 13836, 18691, 24705, 32066, 40964, 51579, 64145, 78850, 95956, 115723, 138385, 164170, 193436, 226467, 263521, 304930, 351076, 402195, 458777, 521082, 589532, 664547]

cp's OEIS Frontend

A212054 Number of (w,x,y,z) with all terms in {1,...,n} and wx>yz+1.

Table of values

List of values

cp's OEIS Frontend

A212054 Number of (w,x,y,z) with all terms in {1,...,n} and w*x>y*z+1.

Table of values

List of values

A212054 Number of (w,x,y,z) with all terms in {1,...,n} and wx>yz+1.