A132137 a(1)=1, a(n)=maximal digit of sum a(1)+...+a(n-1).

1, 1, 2, 4, 8, 6, 2, 4, 8, 6, 4, 6, 5, 7, 6, 7, 7, 8, 9, 1, 2, 4, 8, 6, 2, 4, 8, 6, 4, 6, 5, 7, 6, 7, 7, 8, 9, 2, 3, 6, 2, 4, 8, 6, 3, 5, 4, 4, 8, 6, 6, 8, 7, 8, 9, 3, 3, 6, 3, 5, 3, 3, 6, 3, 5, 4, 4, 8, 6, 6, 8, 7, 8, 9, 4, 4, 8, 6, 4, 6, 4, 6, 4, 6, 5, 7, 6, 7, 7, 8, 9, 5, 6, 5, 7, 5, 9, 8, 6, 5, 7, 6, 7, 7, 8

Offset: 1

Author

Zak Seidov, Oct 31 2007

Keywords

• base
• nonn

Crossrefs

Cf. A134548.

Programs

Mathematica

a[1]=i=s=1;Do[i++;b=0+Max[IntegerDigits[s]];a[i]=b;s+=b,{225}] Table[a[k],{k,i}]