

A115844


Selfdescribing sequence. The nth integer of the sequence indicates how many integers of the sequence are strictly < 10n.


0



1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 30, 40, 50, 60, 70, 80, 90, 100, 101, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145
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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..56.


EXAMPLE

A(7)=15 because there are 15 integers in the sequence which are strictly < 70 (they are 1,10,11,12,13,14,15,16,17,18,20,30,40,50,60)


CROSSREFS

Sequence in context: A248014 A304366 A008715 * A008714 A058364 A228915
Adjacent sequences: A115841 A115842 A115843 * A115845 A115846 A115847


KEYWORD

base,easy,nonn


AUTHOR

Eric Angelini, Feb 01 2006


STATUS

approved



