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

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