

A171083


A "run" means a maximal string of increasing numbers; this sequence has the property that the sequence of run lengths is the sequence itself and all natural numbers appear exactly once.


5



2, 3, 1, 4, 7, 6, 5, 8, 9, 11, 10, 12, 13, 14, 15, 16, 18, 17, 19, 20, 21, 22, 24, 23, 25, 26, 27, 29, 28, 30, 31, 32, 33, 34, 35, 37, 36, 38, 39, 40, 41, 42, 43, 44, 46, 45, 47, 48, 49, 50, 51, 52, 53, 54, 55, 57, 56, 58, 59, 60, 61, 62, 63, 64, 65, 67, 66
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


LINKS

Lars Blomberg, Table of n, a(n) for n = 1..10000
Eric Angelini, Runs
E. Angelini, Runs [Cached copy, with permission]


EXAMPLE

Here is the same sequence with stars demarking the runs: 2, 3, * 1, 4, 7, * 6, * 5, 8, 9, 11, * 10, 12, 13, 14, 15, 16, 18, * 17, 19, 20, 21, 22, 24, * 23, 25, 26, 27, 29, * 28, 30, 31, 32, 33, 34, 35, 37, * 36, 38, 39, 40, 41, 42, 43, 44, 46, * 45, 47, 48, 49, 50, 51, 52, 53, 54, 55, 57, * 56, ...


CROSSREFS

Cf. A171084A171087.
Sequence in context: A111776 A189187 A299714 * A258579 A263757 A021436
Adjacent sequences: A171080 A171081 A171082 * A171084 A171085 A171086


KEYWORD

nonn


AUTHOR

N. J. A. Sloane, Sep 07 2010, based on a posting to the Sequence Fans Mailing List by Eric Angelini, Aug 23 2010.


EXTENSIONS

a(58)a(66) from Lars Blomberg, Nov 23 2013


STATUS

approved



