A212101 - cp's OEIS frontend

A212101 Number of (w,x,y,z) with all terms in {1,...,n} and wx^2=yz^2.

n	a(n)
0	0
1	1
2	4
3	9
4	20
5	29
6	42
7	55
8	80
9	109
10	132
11	153
12	196
13	221
14	254
15	287
16	356
17	389
18	460
19	497
20	568
21	617
22	670
23	715
24	808
25	897
26	960
27	1057
28	1156
29	1213
30	1306
31	1367
32	1512
33	1589
34	1672
35	1749
36	1964
37	2037
38	2130
39	2223
40	2376
41	2457
42	2580
43	2665
44	2824
45	2997
46	3110

[0, 1, 4, 9, 20, 29, 42, 55, 80, 109, 132, 153, 196, 221, 254, 287, 356, 389, 460, 497, 568, 617, 670, 715, 808, 897, 960, 1057, 1156, 1213, 1306, 1367, 1512, 1589, 1672, 1749, 1964, 2037, 2130, 2223, 2376, 2457, 2580, 2665, 2824, 2997, 3110]

cp's OEIS Frontend

A212101 Number of (w,x,y,z) with all terms in {1,...,n} and wx^2=yz^2.

Table of values

List of values

cp's OEIS Frontend

A212101 Number of (w,x,y,z) with all terms in {1,...,n} and w*x^2=y*z^2.

Table of values

List of values

A212101 Number of (w,x,y,z) with all terms in {1,...,n} and wx^2=yz^2.