A212106 - cp's OEIS frontend

A212106 Number of (w,x,y,z) with all terms in {1,...,n} and w < harmonic mean of {x,y,z}.

n	a(n)
0	0
1	0
2	7
3	33
4	96
5	241
6	498
7	933
8	1579
9	2520
10	3828
11	5578
12	7866
13	10815
14	14509
15	19044
16	24603
17	31294
18	39255
19	48645
20	59599
21	72345
22	87051
23	103897
24	123060
25	144792
26	169291
27	196776
28	227445
29	261580
30	299358
31	341178
32	387196
33	437736
34	493050

[0, 0, 7, 33, 96, 241, 498, 933, 1579, 2520, 3828, 5578, 7866, 10815, 14509, 19044, 24603, 31294, 39255, 48645, 59599, 72345, 87051, 103897, 123060, 144792, 169291, 196776, 227445, 261580, 299358, 341178, 387196, 437736, 493050]

cp's OEIS Frontend

A212106 Number of (w,x,y,z) with all terms in {1,...,n} and w < harmonic mean of {x,y,z}.

Table of values

List of values