A005428 - cp's OEIS frontend

A005428 a(n) = ceiling((1 + sum of preceding terms) / 2) starting with a(0) = 1.

n	a(n)
0	1
1	1
2	2
3	3
4	4
5	6
6	9
7	14
8	21
9	31
10	47
11	70
12	105
13	158
14	237
15	355
16	533
17	799
18	1199
19	1798
20	2697
21	4046
22	6069
23	9103
24	13655
25	20482
26	30723
27	46085
28	69127
29	103691
30	155536
31	233304
32	349956
33	524934
34	787401
35	1181102
36	1771653
37	2657479
38	3986219
39	5979328
40	8968992
41	13453488
42	20180232
43	30270348
44	45405522
45	68108283
46	102162425
47	153243637
48	229865456
49	344798184

[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, 13453488, 20180232, 30270348, 45405522, 68108283, 102162425, 153243637, 229865456, 344798184]

cp's OEIS Frontend

A005428 a(n) = ceiling((1 + sum of preceding terms) / 2) starting with a(0) = 1.

Table of values

List of values