1,2

This sequence is a permutation of A173793. Row n ends with (3^n-1)/2. The length of row n is A173801(n).

T. D. Noe, Rows n=1..200, flattened

Sequence in context: A144290 A101181 A160249 * A175174 A136137 A287895

Adjacent sequences: A173797 A173798 A173799 * A173801 A173802 A173803

nonn,tabf

T. D. Noe, Feb 25 2010

approved