A342806 - OEIS

A342806 as a simple table

n	a(n)
1	15
2	21
3	78
4	300
5	528
6	903
7	990
8	1830
9	2628
10	3240
11	3570
12	4278
13	5253
14	5460
15	7503
16	8778
17	9870
18	13203
19	13530
20	16653
21	18528
22	20100
23	22578
24	24753
25	25200
26	29403
27	31878
28	37128
29	39903
30	45753
31	48828
32	55278
33	64980
34	65703
35	72390
36	73920
37	81003
38	88410
39	98790
40	106953
41	107880

[15,21,78,300,528,903,990,1830,2628,3240,3570, 4278,5253,5460,7503,8778,9870,13203,13530,16653, 18528,20100,22578,24753,25200,29403,31878,37128, 39903,45753,48828,55278,64980,65703,72390,73920, 81003,88410,98790,106953,107880]