A250233 - OEIS

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A250233 as a simple table

n	a(n)
1	64
2	651
3	2720
4	9437
5	24888
6	59415
7	120412
8	222037
9	374712
10	604619
11	917564
12	1367285
13	1950096
14	2728843
15	3695508
16	4937005
17	6440172
18	8341783
19	10600204
20	13351293
21	16565560
22	20413939
23	24820216
24	30057481

[64,651,2720,9437,24888,59415,120412,222037, 374712,604619,917564,1367285,1950096,2728843, 3695508,4937005,6440172,8341783,10600204,13351293, 16565560,20413939,24820216,30057481]