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A302839
Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, A000120(a(n)) <= A053735(a(n+1)).
2
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 12, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 32, 27, 34, 28, 31, 35, 33, 30, 38, 37, 39, 40, 36, 41, 42, 43, 44, 45, 46, 47, 49, 48, 50, 51, 52, 53, 56, 55, 59, 61, 62, 65, 54, 58, 60, 64, 57, 66, 63, 68
OFFSET
1,2
COMMENTS
See A302840 for a sequence with alternate digital sums instead of digital sums.
EXAMPLE
The first terms, alongside their digital sums in bases 2 and 3, are:
n a(n) d2(a(n)) d3(a(n))
-- ---- -------- --------
1 1 1 1
2 2 1 2
3 3 2 1
4 4 1 2
5 5 2 3
6 6 2 2
7 7 3 3
8 8 1 4
9 9 2 1
10 10 2 2
11 11 3 3
12 13 3 3
13 14 3 4
14 15 4 3
15 16 1 4
16 12 2 2
17 17 2 5
18 18 2 2
19 19 3 3
20 20 2 4
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Rémy Sigrist, Apr 14 2018
STATUS
approved