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 A183420 First of two complementary trees generated by the squares; the other tree is A183421. 3
 2, 14, 4, 254, 18, 34, 6, 65534, 270, 398, 22, 1294, 40, 62, 9, 4294967294, 65790, 73982, 286, 159998, 418, 574, 27, 1679614, 1330, 1762, 46, 4094, 70, 119, 12 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Begin with the main tree A183169 generated by the squares: ......................1 ......................2 ...........4.....................3 .......16.......6...........9..........5 ...256...20...36..8......81...12....25...7 Every n>2 is in the subtree from 4 or the subtree from 3.  Therefore, on subtracting 2 from all entries of those subtrees, we obtain complementary trees:  A183420 and A183421. LINKS FORMULA See the formulas at A183169 and A183422. EXAMPLE First three levels: ..................2 .............14.........4 ..........254...18....34...6 CROSSREFS Cf. A183169, A183420, A183421, A183422, A183231 (analogous trees generated by the triangular numbers). Sequence in context: A306724 A316909 A103979 * A084677 A191995 A168207 Adjacent sequences:  A183417 A183418 A183419 * A183421 A183422 A183423 KEYWORD nonn,tabf AUTHOR Clark Kimberling, Jan 04 2011 STATUS approved

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Last modified July 23 11:44 EDT 2019. Contains 325254 sequences. (Running on oeis4.)