A224638 - OEIS

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A224638 as a simple table

n	a(n)
1	145121216
2	10906923
3	6162817
4	4750292
5	4617228
6	4971859
7	5047936
8	5029695
9	5708639
10	7589727
11	11387955
12	17128394
13	24395022
14	33632312
15	44378240
16	56580772
17	72151138
18	94546333
19	128344682
20	179174727
21	253082925

[145121216,10906923,6162817,4750292,4617228, 4971859,5047936,5029695,5708639,7589727,11387955, 17128394,24395022,33632312,44378240,56580772, 72151138,94546333,128344682,179174727,253082925]