OFFSET
0,3
COMMENTS
For each term k, k||k is also a term, where || denotes the operation of concatenation.
LINKS
Mason C. Hart, Table of n, a(n) for n = 0..499
Mason C. Hart, Python program to calculate b-file
EXAMPLE
1 cannot be written as a concatenation of 0, therefore a(1) is 1.
10 = 1||0 but 11 cannot be concatenated 11 = 1||1 because 1 can only be used once, therefore a(2) is 11.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Mason C. Hart, Aug 20 2019
STATUS
approved