2,1
a(7)=6 because in generation 7 there are six odd numbers: 127,237,403,729,879,1109.
For "Generations" see A048448-A048455. See also A047844.
Adjacent sequences: A048457 A048458 A048459 this_sequence A048461 A048462 A048463
Sequence in context: A029068 A108932 A029067 this_sequence A036017 A029066 A035581
nonn,more
Patrick De Geest (pdg(AT)worldofnumbers.com), May 15 1999.
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