

A114149


Selfdescribing sequence: 1 even integer between two odd, then 2 even integers between two odd, then 3 even integers, then 4, then 6... The length of each run of even integers is given by the sequence itself (the smallest odd available integer is used when needed).


1



1, 2, 3, 4, 6, 7, 8, 10, 12, 13, 14, 16, 18, 20, 21, 22, 24, 26, 28, 30, 32, 33, 34, 36, 38, 40, 42, 44, 46, 47, 48, 50, 52, 54, 56, 58, 60, 62, 63, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 83, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 107, 108, 110, 112, 114, 116, 118
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,2


LINKS

Table of n, a(n) for n=1..69.


EXAMPLE

Runs of even integers are between brackets:
1,(2),3,(4,6),7,(8,10,12),13,(14,16,18,20),21,(22,24,26,28,30,32),33...
1 even 2 even 3 even 4 even 6 even... etc. = the sequence itself


CROSSREFS

Sequence in context: A167701 A275157 A336824 * A294652 A320143 A062974
Adjacent sequences: A114146 A114147 A114148 * A114150 A114151 A114152


KEYWORD

base,easy,nonn


AUTHOR

Eric Angelini and Alexandre Wajnberg, Feb 03 2006


STATUS

approved



