A258432 Smallest number m such that A062234(m) = A062234(m-1+k) for k = 1..A258383(n).

1, 3, 5, 7, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 66, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77

Offset

1,2

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Example

.       n | 1 2   3 4   5 6    7  8    9   10   11   12   13 14   15
. A062234 | 1 1   3 3   9 9   15 15   17   27   25   33   39 39   41
. --------+-----+-----+-----+-------+----+----+----+----+-------+----+-
. A258383 | 2   | 2   | 2   | 2     | 1  |  1 |  1 |  1 |  2    |  1 |
. A258432 | 1   | 3   | 5   | 7     | 9  | 10 | 11 | 12 | 13    | 15 |
. run #   | 1   | 2   | 3   | 4     | 5  |  6 |  7 |  8 |  9    | 10 |

Prog

(Haskell)
import Data.List (groupBy); import Data.Function (on))
a258432 n = a258432_list !! (n-1)
a258432_list = map (snd . head) $
                    groupBy ((==) `on` fst) $ zip a062234_list [1..]

Crossrefs

Cf. A062234, A258383.

Sequence in context: A007957 A194377 A344449 * A344000 A128938 A215138

Adjacent sequences: A258429 A258430 A258431 * A258433 A258434 A258435

Keyword

nonn

Author

Reinhard Zumkeller, May 31 2015

Status

approved