1,1
For "Generations" see A048448-A048455. See also A047844.
Sequence in context: A163096 A027694 A063191 * A075824 A108113 A111391
Adjacent sequences: A048461 A048462 A048463 * A048465 A048466 A048467
nonn
Patrick De Geest (pdg(AT)worldofnumbers.com), May 15 1999.