A212741 - cp's OEIS frontend

A212741 Number of (w,x,y,z) with all terms in {0,...,n} and max{w,x,y,z}>=2*min{w,x,y,z}.

n	a(n)
0	1
1	15
2	79
3	239
4	593
5	1199
6	2239
7	3759
8	6049
9	9119
10	13391
11	18815
12	25969
13	34719
14	45823
15	59039
16	75329
17	94319
18	117199
19	143439
20	174481
21	209615
22	250559
23	296399
24	349153
25	407679
26	474319
27	547679
28	630449
29	720959
30	822271
31	932415
32	1054849
33	1187279
34	1333583
35	1491119
36	1664209
37	1849839

[1, 15, 79, 239, 593, 1199, 2239, 3759, 6049, 9119, 13391, 18815, 25969, 34719, 45823, 59039, 75329, 94319, 117199, 143439, 174481, 209615, 250559, 296399, 349153, 407679, 474319, 547679, 630449, 720959, 822271, 932415, 1054849, 1187279, 1333583, 1491119, 1664209, 1849839]

cp's OEIS Frontend

A212741 Number of (w,x,y,z) with all terms in {0,...,n} and max{w,x,y,z}>=2*min{w,x,y,z}.

Table of values

List of values