A135370 - cp's OEIS frontend

A135370 a(1)=1; then if n even a(n) = n + a(n-1), if n odd a(n) = 2*n + a(n-1).

n	a(n)
1	1
2	3
3	9
4	13
5	23
6	29
7	43
8	51
9	69
10	79
11	101
12	113
13	139
14	153
15	183
16	199
17	233
18	251
19	289
20	309
21	351
22	373
23	419
24	443
25	493
26	519
27	573
28	601
29	659
30	689
31	751
32	783
33	849
34	883
35	953
36	989
37	1063
38	1101
39	1179
40	1219
41	1301
42	1343
43	1429
44	1473
45	1563
46	1609
47	1703
48	1751
49	1849
50	1899
51	2001
52	2053

[1, 3, 9, 13, 23, 29, 43, 51, 69, 79, 101, 113, 139, 153, 183, 199, 233, 251, 289, 309, 351, 373, 419, 443, 493, 519, 573, 601, 659, 689, 751, 783, 849, 883, 953, 989, 1063, 1101, 1179, 1219, 1301, 1343, 1429, 1473, 1563, 1609, 1703, 1751, 1849, 1899, 2001, 2053]

cp's OEIS Frontend

A135370 a(1)=1; then if n even a(n) = n + a(n-1), if n odd a(n) = 2*n + a(n-1).

Table of values

List of values