A085490 - cp's OEIS frontend

A085490 Number of pairs with two different elements which can be obtained by selecting unique elements from two sets with n+1 and n^2 elements respectively and n common elements.

n	a(n)
0	0
1	1
2	10
3	33
4	76
5	145
6	246
7	385
8	568
9	801
10	1090
11	1441
12	1860
13	2353
14	2926
15	3585
16	4336
17	5185
18	6138
19	7201
20	8380
21	9681
22	11110
23	12673
24	14376
25	16225
26	18226
27	20385
28	22708
29	25201
30	27870
31	30721
32	33760
33	36993
34	40426
35	44065
36	47916
37	51985
38	56278
39	60801
40	65560
41	70561
42	75810
43	81313

[0, 1, 10, 33, 76, 145, 246, 385, 568, 801, 1090, 1441, 1860, 2353, 2926, 3585, 4336, 5185, 6138, 7201, 8380, 9681, 11110, 12673, 14376, 16225, 18226, 20385, 22708, 25201, 27870, 30721, 33760, 36993, 40426, 44065, 47916, 51985, 56278, 60801, 65560, 70561, 75810, 81313]

cp's OEIS Frontend

A085490 Number of pairs with two different elements which can be obtained by selecting unique elements from two sets with n+1 and n^2 elements respectively and n common elements.

Table of values

List of values