A118551 - cp's OEIS frontend

A118551 a(0)=1. a(n) = a(n-1)*2, if n is in the sequence. a(n) = a(n-1) + 1 if n is missing from the sequence.

n	a(n)
0	1
1	2
2	4
3	5
4	10
5	20
6	21
7	22
8	23
9	24
10	48
11	49
12	50
13	51
14	52
15	53
16	54
17	55
18	56
19	57
20	114
21	228
22	456
23	912
24	1824
25	1825
26	1826
27	1827
28	1828
29	1829
30	1830
31	1831
32	1832
33	1833
34	1834
35	1835
36	1836
37	1837
38	1838
39	1839
40	1840
41	1841
42	1842
43	1843
44	1844
45	1845
46	1846
47	1847
48	3694
49	7388
50	14776

[1, 2, 4, 5, 10, 20, 21, 22, 23, 24, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 114, 228, 456, 912, 1824, 1825, 1826, 1827, 1828, 1829, 1830, 1831, 1832, 1833, 1834, 1835, 1836, 1837, 1838, 1839, 1840, 1841, 1842, 1843, 1844, 1845, 1846, 1847, 3694, 7388, 14776]

cp's OEIS Frontend

A118551 a(0)=1. a(n) = a(n-1)*2, if n is in the sequence. a(n) = a(n-1) + 1 if n is missing from the sequence.

Table of values

List of values