A023493 - cp's OEIS frontend

A023493 a(n) = b(n) + d(n), where b(n) = (n-th Lucas number > 1) and d(n) = (n-th non-Lucas number).

n	a(n)
0	5
1	9
2	13
3	19
4	27
5	39
6	59
7	89
8	137
9	214
10	338
11	538
12	862
13	1384
14	2228
15	3593
16	5801
17	9373
18	15152
19	24502
20	39630
21	64107
22	103712
23	167792
24	271475
25	439237
26	710681
27	1149886
28	1860534
29	3010386
30	4870885
31	7881235
32	12752083
33	20633280
34	33385324
35	54018564
36	87403847
37	141422369

[5, 9, 13, 19, 27, 39, 59, 89, 137, 214, 338, 538, 862, 1384, 2228, 3593, 5801, 9373, 15152, 24502, 39630, 64107, 103712, 167792, 271475, 439237, 710681, 1149886, 1860534, 3010386, 4870885, 7881235, 12752083, 20633280, 33385324, 54018564, 87403847, 141422369]

cp's OEIS Frontend

A023493 a(n) = b(n) + d(n), where b(n) = (n-th Lucas number > 1) and d(n) = (n-th non-Lucas number).

Table of values

List of values