A212047 - cp's OEIS frontend

A212047 Number of (w,x,y,z) with all terms in {1,...,n} and wx=4y*z.

n	a(n)
0	0
1	0
2	1
3	1
4	14
5	18
6	31
7	35
8	80
9	96
10	125
11	133
12	216
13	228
14	269
15	309
16	444
17	460
18	543
19	559
20	720
21	784
22	853
23	873
24	1142
25	1202
26	1287
27	1363
28	1596
29	1624
30	1831
31	1859
32	2206
33	2314
34	2427
35	2559
36	2962
37	2998
38	3123
39	3247
40	3758
41	3798
42	4103
43	4143
44	4524
45	4772
46	4925
47	4969
48	5712
49	5836

[0, 0, 1, 1, 14, 18, 31, 35, 80, 96, 125, 133, 216, 228, 269, 309, 444, 460, 543, 559, 720, 784, 853, 873, 1142, 1202, 1287, 1363, 1596, 1624, 1831, 1859, 2206, 2314, 2427, 2559, 2962, 2998, 3123, 3247, 3758, 3798, 4103, 4143, 4524, 4772, 4925, 4969, 5712, 5836]

cp's OEIS Frontend

A212047 Number of (w,x,y,z) with all terms in {1,...,n} and wx=4y*z.

Table of values

List of values

cp's OEIS Frontend

A212047 Number of (w,x,y,z) with all terms in {1,...,n} and w*x=4*y*z.

Table of values

List of values

A212047 Number of (w,x,y,z) with all terms in {1,...,n} and wx=4y*z.