3333336

Appears in sequences

• Numbers k such that k^2 is the concatenation of two numbers m and 8*m.at n=12A115550
• For k in {2,3,...,9} define a sequence as follows: a(0)=0; for n>=0, a(n+1)=a(n)+1, unless a(n) ends in k, in which case a(n+1) is obtained by replacing the last digit of a(n) with the digit(s) of k^2. This is k(6).at n=12A237343