A115843 Self-describing sequence. The n-th integer of the sequence indicates how many integers of the sequence are strictly < 9n.

1, 9, 10, 11, 12, 13, 14, 15, 16, 18, 27, 36, 45, 54, 63, 72, 81, 82, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130

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..59.

Example

A(7)=14 because there are 14 integers in the sequence which are strictly < 63 (they are 1,9,10,11,12,13,14,15,16,18,27,36,45,54)

Crossrefs

Sequence in context: A023392 A060009 A250042 * A058365 A162789 A121816

Adjacent sequences: A115840 A115841 A115842 * A115844 A115845 A115846

Keyword

base,easy,nonn

Author

Eric Angelini, Feb 01 2006

Status

approved