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A115841
Self-describing sequence. The n-th integer of the sequence indicates how many integers of the sequence are strictly < 7n.
0
1, 7, 8, 9, 10, 11, 12, 14, 21, 28, 35, 42, 49, 50, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 98, 99, 100, 101, 102, 103, 105, 112, 119, 126, 133, 140, 147, 154, 161, 168
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.
EXAMPLE
A(7)=12 because there are 12 integers in the sequence which are strictly < 49 (they are 1,7,8,9,10,11,12,14,21,28,35,42)
CROSSREFS
Sequence in context: A363492 A120208 A100562 * A058367 A035703 A065976
KEYWORD
base,easy,nonn
AUTHOR
Eric Angelini, Feb 01 2006
STATUS
approved