OFFSET
1,2
LINKS
Carole Dubois, Table of n, a(n) for n = 1..5000
EXAMPLE
The 1st digit of the sequence [1] is present in |a(1) - a(2)| = |1 - 2| = 1;
the 2nd digit of the sequence [2] is present in |a(2) - a(3)| = |2 - 4| = 2;
the 3rd digit of the sequence [4] is present in |a(3) - a(4)| = |4 - 8| = 4;
the 4th digit of the sequence [8] is present in |a(4) - a(5)| = |8 - 16| = 8;
the 5th digit of the sequence [1] is present in |a(5) - a(6)| = |16 - 3| = 13;
the 6th digit of the sequence [6] is present in |a(6) - a(7)| = |3 - 9| = 6;
the 7th digit of the sequence [3] is present in |a(7) - a(8)| = |9 - 6| = 3;
etc.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Eric Angelini and Carole Dubois, Feb 20 2021
STATUS
approved