A300745 - OEIS

A300745 as a simple table

n	a(n)
0	1
1	4
2	12
3	18
4	31
5	51
6	76
7	109
8	133
9	164
10	210
11	257
12	302
13	356
14	416
15	467
16	536
17	612
18	685
19	758
20	839
21	924
22	1029
23	1124
24	1194
25	1314
26	1439
27	1540
28	1651
29	1757
30	1892
31	2047
32	2164
33	2263
34	2457
35	2592
36	2707
37	2900
38	3067
39	3173
40	3386
41	3557
42	3698
43	3916
44	4089
45	4235

[1,4,12,18,31,51,76,109,133,164,210,257,302,356, 416,467,536,612,685,758,839,924,1029,1124,1194, 1314,1439,1540,1651,1757,1892,2047,2164,2263,2457, 2592,2707,2900,3067,3173,3386,3557,3698,3916,4089, 4235]