0,3

a(97) cannot be written in decimal since it requires ten to be written as a single digit.

Table of n, a(n) for n=0..53.

Number of values of a(n) with a digit sum of k is A000041, number of values of a(n) with a digit sum of k and m digits is A008284, a(A000070(n))=n+1 written as a single digit, a(A026905(n))=A000042(n).

Sequence in context: A242614 A069800 A275536 * A110741 A113625 A090323

Adjacent sequences: A059999 A060000 A060001 * A060003 A060004 A060005

base,nonn

Henry Bottomley, Mar 14 2001

approved