A022940 - cp's OEIS frontend

A022940 a(n) = a(n-1) + b(n-2) for n >= 3, a( ) increasing, given a(1) = 1, a(2) = 3; where b( ) is complement of a( ).

n	a(n)
1	1
2	3
3	5
4	9
5	15
6	22
7	30
8	40
9	51
10	63
11	76
12	90
13	106
14	123
15	141
16	160
17	180
18	201
19	224
20	248
21	273
22	299
23	326
24	354
25	383
26	414
27	446
28	479
29	513
30	548
31	584
32	621
33	659
34	698
35	739
36	781
37	824
38	868
39	913
40	959
41	1006
42	1054
43	1103
44	1153
45	1205
46	1258
47	1312
48	1367
49	1423
50	1480

[1, 3, 5, 9, 15, 22, 30, 40, 51, 63, 76, 90, 106, 123, 141, 160, 180, 201, 224, 248, 273, 299, 326, 354, 383, 414, 446, 479, 513, 548, 584, 621, 659, 698, 739, 781, 824, 868, 913, 959, 1006, 1054, 1103, 1153, 1205, 1258, 1312, 1367, 1423, 1480]

cp's OEIS Frontend

A022940 a(n) = a(n-1) + b(n-2) for n >= 3, a( ) increasing, given a(1) = 1, a(2) = 3; where b( ) is complement of a( ).

Table of values

List of values