A253144 - OEIS

A253144 as a simple table

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	2
9	2
10	3
11	3
12	3
13	4
14	5
15	5
16	5
17	6
18	6
19	7
20	9
21	10
22	11
23	12
24	13
25	14
26	16
27	18
28	19
29	21
30	23
31	25
32	28
33	31
34	34
35	37
36	40
37	43
38	47
39	52
40	56
41	61
42	66
43	71
44	78
45	85
46	92
47	99
48	107
49	115
50	124
51	135
52	145
53	156
54	168
55	180
56	194
57	210
58	226
59	242
60	260
61	278
62	297
63	320
64	343
65	367
66	393
67	420
68	449
69	481
70	516
71	550
72	587
73	626
74	666
75	712
76	760
77	810
78	863
79	919
80	978
81	1041
82	1110
83	1180
84	1254
85	1333
86	1414
87	1503
88	1598
89	1697
90	1801

[1,1,1,1,1,1,1,2,2,2,3,3,3,4,5,5,5,6,6,7,9,10,11, 12,13,14,16,18,19,21,23,25,28,31,34,37,40,43,47, 52,56,61,66,71,78,85,92,99,107,115,124,135,145, 156,168,180,194,210,226,242,260,278,297,320,343, 367,393,420,449,481,516,550,587,626,666,712,760, 810,863,919,978,1041,1110,1180,1254,1333,1414, 1503,1598,1697,1801]