OFFSET
1,2
LINKS
Jean-Marc Falcoz, Table of n, a(n) for n = 1..20002
EXAMPLE
a(1) = 1 and a(2) = 10 share with their product 10 the substring 1;
a(2) = 10 and a(3) = 11 share with their product 110 the substring 1;
a(3) = 11 and a(4) = 12 share with their product 132 the substring 1;
a(4) = 12 and a(5) = 2 share with their product 24 the substring 2;
a(5) = 2 and a(6) = 21 share with their product 42 the substring 2; etc.
CROSSREFS
Cf. A333723 (lists the products a(n) * a(n+1) in their order of appearance here), A333724 (lists the biggest substring shared by a(n), a(n+1) and (a(n)*a(n+1)) in their order of appearance here), A262323 (is the lexicographically earliest sequence of distinct terms such that the decimal representations of two consecutive terms overlap).
KEYWORD
base,nonn
AUTHOR
Eric Angelini and Jean-Marc Falcoz, Apr 03 2020
STATUS
approved