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A120631 formatted as a simple table:

n a(n)
0 0
1 1
2 3
3 4
4 5
5 8
6 9
7 11
8 12
9 13
10 15
11 -1
12 -1
13 -1
14 -1
15 -1
16 16
17 17
18 19
19 20
20 21
21 24
22 25
23 27
24 28
25 29
26 31
27 -1
28 -1
29 -1
30 -1
31 -1
32 32
33 33
34 35
35 36
36 37
37 40
38 41
39 43
40 44
41 45
42 47
43 -1
44 -1
45 -1
46 -1
47 -1
48 48
49 49
50 51
51 52
52 53
53 56
54 57
55 59
56 60
57 61
58 63
59 -1
60 -1
61 -1
62 -1
63 -1
64 64
65 65
66 67
67 68
68 69
69 72
70 73
71 75
72 76
73 77
74 79
75 -1
76 -1
77 -1
78 -1
79 -1
80 80
81 81
82 83
83 84
84 85
85 88
86 89

[0,1,3,4,5,8,9,11,12,13,15,-1,-1,-1,-1,-1,16,17,
 19,20,21,24,25,27,28,29,31,-1,-1,-1,-1,-1,32,33,
 35,36,37,40,41,43,44,45,47,-1,-1,-1,-1,-1,48,49,
 51,52,53,56,57,59,60,61,63,-1,-1,-1,-1,-1,64,65,
 67,68,69,72,73,75,76,77,79,-1,-1,-1,-1,-1,80,81,
 83,84,85,88,89]

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.


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