A002768 - OEIS

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A002768 as a simple table

n	a(n)
0	5
1	13
2	30
3	59
4	109
5	187
6	312
7	497
8	775
9	1176
10	1753
11	2561
12	3694
13	5245
14	7366
15	10223
16	14056
17	19137
18	25853
19	34637
20	46092
21	60910
22	80009
23	104462
24	135674
25	175274

[5,13,30,59,109,187,312,497,775,1176,1753,2561, 3694,5245,7366,10223,14056,19137,25853,34637, 46092,60910,80009,104462,135674,175274]