1,6

1. There are no terms in A023086 with number of digits in the range 2..5: a(2..5)=0, then a(6)=12, a(7)=288 etc.

2. Minimal and maximal n-digit terms (n>=6) in A023086 are (10^(n-1)+25874) and (5*10^(n-1)-71429).

A023086 n and 2*n are anagrams. A159816 Seven-digit terms in A023086.

Sequence in context: A154669 A079519 A077424 this_sequence A145448 A001164 A041267

Adjacent sequences: A159824 A159825 A159826 this_sequence A159828 A159829 A159830

base,nonn

Zak Seidov (zakseidov(AT)yahoo.com), Apr 22 2009