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A355909
Number of nodes at level n in the tree T_0 mentioned in A355905.
2
1, 2, 3, 4, 6, 9, 13, 19, 28, 42, 63, 94, 141, 212, 318, 477, 716, 1074, 1611, 2417, 3626, 5439, 8158, 12237
OFFSET
0,2
COMMENTS
First differences give A355910.
LINKS
Don Knuth, Ambidextrous Numbers, Preprint, September 2022. See (8.1), w_n.
FORMULA
a(n) = 1 + (c(n)+c(n-1))/2 where c(n) = |A355908(n)|.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Sep 19 2022
STATUS
approved