1,2

No more terms < 3^20. - Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), Jun 05 2006

n: 1, 2, 4, 5, 7, 22, 43, 131, 394

n^2: 1, 4, 16, 25, 49, 484, 1849, 17161, 155236

n written in base 3: 1, 2, 11, 12, 21, 211, 1121, 11212, 112121

n^2 written in base 3: 1,11,121,221,1211,122221,2112111,212112121,21212221111

Sequence in context: A127791 A005620 A049915 this_sequence A097698 A101410 A110991

Adjacent sequences: A119906 A119907 A119908 this_sequence A119910 A119911 A119912

base,more,nonn

Zak Seidov (zakseidov(AT)yahoo.com), May 28 2006