A207380 - OEIS

A207380 as a simple table

n	a(n)
0	0
1	3
2	10
3	21
4	42
5	70
6	122
7	187
8	298
9	443
10	667
11	957
12	1401
13	1960
14	2775
15	3828
16	5295
17	7167
18	9745
19	12998
20	17380
21	22915
22	30196
23	39347
24	51274
25	66126
26	85209
27	108942
28	139055
29	176273
30	223148
31	280733
32	352623
33	440646
34	549597
35	682411
36	845852
37	1044084
38	1286512
39	1579582

[0,3,10,21,42,70,122,187,298,443,667,957,1401, 1960,2775,3828,5295,7167,9745,12998,17380,22915, 30196,39347,51274,66126,85209,108942,139055, 176273,223148,280733,352623,440646,549597,682411, 845852,1044084,1286512,1579582]