A114149 Self-describing 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, 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

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: A368747 A374685 A336824 * A294652 A352882 A320143

Adjacent sequences: A114146 A114147 A114148 * A114150 A114151 A114152

Keyword

base,easy,nonn

Author

Eric Angelini and Alexandre Wajnberg, Feb 03 2006

Status

approved