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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
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.
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 A344115 A373790
KEYWORD
nonn,tabf
AUTHOR
Clark Kimberling, Jan 04 2011
STATUS
approved