A003318 - cp's OEIS frontend

A003318 a(n+1) = 1 + a( floor(n/1) ) + a( floor(n/2) ) + ... + a( floor(n/n) ).

n	a(n)
1	1
2	2
3	4
4	7
5	12
6	18
7	28
8	39
9	55
10	74
11	100
12	127
13	167
14	208
15	261
16	322
17	399
18	477
19	581
20	686
21	820
22	967
23	1142
24	1318
25	1545
26	1778
27	2053
28	2347
29	2697
30	3048
31	3486
32	3925
33	4441
34	4986
35	5610
36	6250
37	7024
38	7799
39	8680
40	9604
41	10673
42	11743
43	13008
44	14274
45	15718
46	17239
47	18937
48	20636

[1, 2, 4, 7, 12, 18, 28, 39, 55, 74, 100, 127, 167, 208, 261, 322, 399, 477, 581, 686, 820, 967, 1142, 1318, 1545, 1778, 2053, 2347, 2697, 3048, 3486, 3925, 4441, 4986, 5610, 6250, 7024, 7799, 8680, 9604, 10673, 11743, 13008, 14274, 15718, 17239, 18937, 20636]

cp's OEIS Frontend

A003318 a(n+1) = 1 + a( floor(n/1) ) + a( floor(n/2) ) + ... + a( floor(n/n) ).

Table of values

List of values