1,1

Cf. A006937.

Sequence in context: A028582 A137890 A074333 this_sequence A057015 A059732 A000884

Adjacent sequences: A008556 A008557 A008558 this_sequence A008560 A008561 A008562

nonn,base,nice

N. J. A. Sloane (njas(AT)research.att.com).

Next term has 100 characters.