A301854 - OEIS

A301854 as a simple table

n	a(n)
1	1
2	3
3	7
4	13
5	25
6	40
7	67
8	100
9	158
10	220
11	336
12	452
13	649
14	862
15	1228
16	1553
17	2155
18	2738
19	3674
20	4612
21	6124
22	7497
23	9857
24	12118
25	15524
26	18821
27	24152
28	28863
29	36549
30	44002
31	54576
32	65125
33	80943
34	95470
35	117991
36	139382
37	169389
38	199144
39	242925
40	283353
41	342139
42	400701
43	479001

[1,3,7,13,25,40,67,100,158,220,336,452,649,862, 1228,1553,2155,2738,3674,4612,6124,7497,9857, 12118,15524,18821,24152,28863,36549,44002,54576, 65125,80943,95470,117991,139382,169389,199144, 242925,283353,342139,400701,479001]