1,1

This is the smallest number of persistence 9 (cf. A003001).

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

Cf. A003001.

Sequence in context: A120410 A151622 A086129 this_sequence A046518 A046509 A069342

Adjacent sequences: A121106 A121107 A121108 this_sequence A121110 A121111 A121112

nonn,fini,full

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