OFFSET
1,1
EXAMPLE
a(1) = 11, 1 = 1.
a(2) = 167, 1+6 = 7
a(3) = 1427, 1+4+2 = 7.
a(4) = 12227, 1+2+2+2 = 7.
a(5) = 111227, 1+1+1+2+2 = 7.
a(6) = 11117213, 1+1+1+1+7+2 = 13.
a(7) = 11111117, 1+1+1+1+1+1+1 = 7.
a(8) = 1111111411, 1+1+1+1+1+1+1+4 = 11.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Sep 30 2003
EXTENSIONS
a(6)-a(8) from Randy L. Ekl, Jan 08 2017
Offset corrected by Omar E. Pol, Jan 09 2017
a(9)-a(19) from Giovanni Resta, Apr 24 2017
STATUS
approved