A211921 - cp's OEIS frontend

A211921 Number of (w,x,y,z) with all terms in {1,...,n} and 2wx<=3y*z.

n	a(n)
0	0
1	1
2	11
3	58
4	176
5	407
6	840
7	1536
8	2591
9	4133
10	6268
11	9119
12	12895
13	17684
14	23706
15	31201
16	40315
17	51239
18	64352
19	79770
20	97829
21	118795
22	142947
23	170548
24	202114
25	237757
26	277915
27	323080
28	373489
29	429449
30	491670
31	560274
32	635851
33	718858
34	809692

[0, 1, 11, 58, 176, 407, 840, 1536, 2591, 4133, 6268, 9119, 12895, 17684, 23706, 31201, 40315, 51239, 64352, 79770, 97829, 118795, 142947, 170548, 202114, 237757, 277915, 323080, 373489, 429449, 491670, 560274, 635851, 718858, 809692]

cp's OEIS Frontend

A211921 Number of (w,x,y,z) with all terms in {1,...,n} and 2wx<=3y*z.

Table of values

List of values

cp's OEIS Frontend

A211921 Number of (w,x,y,z) with all terms in {1,...,n} and 2w*x<=3*y*z.

Table of values

List of values

A211921 Number of (w,x,y,z) with all terms in {1,...,n} and 2wx<=3y*z.