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A236405
Number of closed typable lambda terms of size n with size 0 for the variables.
3
0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 5, 4, 9, 13, 23, 29, 67, 94, 179, 285, 503, 795, 1503, 2469, 4457, 7624, 13475, 23027, 41437, 72165, 128905, 227510, 405301, 715078, 1280127, 2279393, 4086591, 7316698, 13139958, 23551957, 42383667, 76278547, 137609116, 248447221, 449201368, 812315229, 1470997501
OFFSET
0,11
COMMENTS
For definition see Appendix A of Grygiel and Lescanne, arXiv 2014.
REFERENCES
Katarzyna Grygiel, Pierre Lescanne. Counting and Generating Terms in the Binary Lambda Calculus (Extended version). 2015. <ensl-01229794>
LINKS
K. Grygiel, P. Lescanne, Counting terms in the binary lambda calculus, arXiv preprint arXiv:1401.0379 [cs.LO], 2014.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 31 2014
EXTENSIONS
Name clarified by Pierre Lescanne, Jul 13 2016
STATUS
approved