A073941 - cp's OEIS frontend

A073941 a(n) = ceiling((Sum_{k=1..n-1} a(k)) / 2) for n >= 2 starting with a(1) = 1.

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	4
7	6
8	9
9	14
10	21
11	31
12	47
13	70
14	105
15	158
16	237
17	355
18	533
19	799
20	1199
21	1798
22	2697
23	4046
24	6069
25	9103
26	13655
27	20482
28	30723
29	46085
30	69127
31	103691
32	155536
33	233304
34	349956
35	524934
36	787401
37	1181102
38	1771653
39	2657479
40	3986219
41	5979328
42	8968992

[1, 1, 1, 2, 3, 4, 6, 9, 14, 21, 31, 47, 70, 105, 158, 237, 355, 533, 799, 1199, 1798, 2697, 4046, 6069, 9103, 13655, 20482, 30723, 46085, 69127, 103691, 155536, 233304, 349956, 524934, 787401, 1181102, 1771653, 2657479, 3986219, 5979328, 8968992]

cp's OEIS Frontend

A073941 a(n) = ceiling((Sum_{k=1..n-1} a(k)) / 2) for n >= 2 starting with a(1) = 1.

Table of values

List of values