1,2
Subsequence of A121717.
Conjecture: the sequence is finite.
Sequence in context: A075041 A105453 A199368 * A194379 A147832 A022369
Adjacent sequences: A121713 A121714 A121715 * A121717 A121718 A121719
nonn
Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 18 2006