A115840 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A115840

Self-describing sequence. The n-th integer of the sequence indicates how many integers of the sequence are strictly < 6n.

1, 6, 7, 8, 9, 10, 12, 18, 24, 30, 36, 37, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 72, 73, 74, 75, 76, 78, 84, 90, 96, 102, 108, 114, 120, 126, 132, 138, 144, 150, 156, 162, 168, 174, 180, 186, 192, 198, 204, 210

(list; graph; refs; listen; history; text; internal format)

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..65.

EXAMPLE

A(7)=12 because there are 12 integers in the sequence which are strictly < 42 (they are 1,6,7,8,9,10,12,18,24,30,36,37)

CROSSREFS

Sequence in context: A178868 A069838 A067901 * A371565 A353437 A352155

Adjacent sequences: A115837 A115838 A115839 * A115841 A115842 A115843

KEYWORD

base,easy,nonn

AUTHOR

Eric Angelini, Feb 01 2006

STATUS

approved