

A115838


Selfdescribing sequence. The nth integer of the sequence indicates how many integers of the sequence are strictly < 4n.


0



1, 4, 5, 6, 8, 12, 16, 17, 20, 21, 22, 23, 24, 25, 26, 27, 28, 32, 33, 34, 36, 40, 44, 48, 52, 56, 60, 64, 68, 69, 70, 71, 72, 76, 80, 81, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113
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OFFSET

1,2


COMMENTS

Terms computed by Gilles Sadowski. In building step by step the sequence one has sometimes the choice for an integer. If so take the smallest available one.


LINKS

Table of n, a(n) for n=1..66.


EXAMPLE

A(7)=16 because there are 16 integers in the sequence which are strictly < 28 (they are 1,4,5,6,8,12,16,17,20,21,22,23,24,25,26,27).


CROSSREFS

Sequence in context: A030590 A047430 A204098 * A310572 A310573 A158650
Adjacent sequences: A115835 A115836 A115837 * A115839 A115840 A115841


KEYWORD

base,easy,nonn


AUTHOR

Eric Angelini, Feb 01 2006


STATUS

approved



