1,1

This is the smallest number of persistence 5 (cf. A003001).

N. J. A. Sloane, The persistence of a number, J. Recreational Math., 6 (1973), 97-98.

Cf. A003001.

Sequence in context: A031524 A158385 A097771 this_sequence A046514 A164650 A097772

Adjacent sequences: A121102 A121103 A121104 this_sequence A121106 A121107 A121108

nonn,fini,full

N. J. A. Sloane (njas(AT)research.att.com), Aug 12 2006