A302839 Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, A000120(a(n)) <= A053735(a(n+1)).
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
Examples
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
Links
- Rémy Sigrist, Table of n, a(n) for n = 1..10000
- Rémy Sigrist, Colored scatterplot of the first 10000 terms (where the color is function of A053735(a(n)))
- Rémy Sigrist, PARI program for A302839
- Index entries for sequences related to digital root, sum, etc.
Programs
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PARI
See Links section.
Comments