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
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