A211539 - cp's OEIS frontend

A211539 Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w = 2n - 2x + y.

n	a(n)
0	0
1	0
2	2
3	3
4	7
5	9
6	15
7	18
8	26
9	30
10	40
11	45
12	57
13	63
14	77
15	84
16	100
17	108
18	126
19	135
20	155
21	165
22	187
23	198
24	222
25	234
26	260
27	273
28	301
29	315
30	345
31	360
32	392
33	408
34	442
35	459
36	495
37	513
38	551
39	570
40	610
41	630
42	672
43	693
44	737
45	759
46	805
47	828
48	876
49	900
50	950
51	975
52	1027
53	1053

[0, 0, 2, 3, 7, 9, 15, 18, 26, 30, 40, 45, 57, 63, 77, 84, 100, 108, 126, 135, 155, 165, 187, 198, 222, 234, 260, 273, 301, 315, 345, 360, 392, 408, 442, 459, 495, 513, 551, 570, 610, 630, 672, 693, 737, 759, 805, 828, 876, 900, 950, 975, 1027, 1053]

cp's OEIS Frontend

A211539 Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w = 2n - 2x + y.

Table of values

List of values