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A268225 Number of types of lambda-terms of term size n. 0
1, 1, 5, 16, 55, 235, 1102, 5757, 33251 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..9.

P. Tarau, A Logic Programming Playground for Lambda Terms, Combinators, Types and Tree-based Arithmetic Computations, arXiv preprint arXiv:1507.06944 [cs.LO], 2015.

CROSSREFS

Cf. A220471.

Sequence in context: A089102 A098912 A299685 * A120343 A301280 A153366

Adjacent sequences:  A268222 A268223 A268224 * A268226 A268227 A268228

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jan 30 2016

STATUS

approved

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Last modified March 5 16:55 EST 2021. Contains 341827 sequences. (Running on oeis4.)