A212751 - cp's OEIS frontend

A212751 Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w=R, x=R, y=R, z where R = max{w,x,y,z} - min{w,x,y,z}.

n	a(n)
0	1
1	14
2	70
3	198
4	477
5	924
6	1696
7	2768
8	4405
9	6510
10	9486
11	13134
12	18025
13	23828
14	31312
15	39984
16	50841
17	63198
18	78310
19	95270
20	115621
21	138204
22	164880
23	194208
24	228397
25	265694
26	308686
27	355278
28	408465
29	465780
30	530656
31	600224
32	678385
33	761838

[1, 14, 70, 198, 477, 924, 1696, 2768, 4405, 6510, 9486, 13134, 18025, 23828, 31312, 39984, 50841, 63198, 78310, 95270, 115621, 138204, 164880, 194208, 228397, 265694, 308686, 355278, 408465, 465780, 530656, 600224, 678385, 761838]

cp's OEIS Frontend

A212751 Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w=R, x=R, y=R, z where R = max{w,x,y,z} - min{w,x,y,z}.

Table of values

List of values