A212050 - cp's OEIS frontend

A212050 Number of (w,x,y,z) with all terms in {1,...,n} and 2wx=5y*z.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	20
6	32
7	36
8	46
9	54
10	118
11	126
12	162
13	170
14	194
15	316
16	358
17	370
18	430
19	442
20	614
21	666
22	714
23	730
24	840
25	1064
26	1124
27	1184
28	1276
29	1296
30	1686
31	1710
32	1824
33	1908
34	1980
35	2320
36	2524
37	2552
38	2636
39	2732
40	3202
41	3234
42	3470
43	3502
44	3658
45	4222
46	4330

[0, 0, 0, 0, 0, 20, 32, 36, 46, 54, 118, 126, 162, 170, 194, 316, 358, 370, 430, 442, 614, 666, 714, 730, 840, 1064, 1124, 1184, 1276, 1296, 1686, 1710, 1824, 1908, 1980, 2320, 2524, 2552, 2636, 2732, 3202, 3234, 3470, 3502, 3658, 4222, 4330]

cp's OEIS Frontend

A212050 Number of (w,x,y,z) with all terms in {1,...,n} and 2wx=5y*z.

Table of values

List of values

cp's OEIS Frontend

A212050 Number of (w,x,y,z) with all terms in {1,...,n} and 2w*x=5*y*z.

Table of values

List of values

A212050 Number of (w,x,y,z) with all terms in {1,...,n} and 2wx=5y*z.