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A262548 Nearest integer to 2^(2^(n-1))/(2*n!). 0
1, 1, 1, 5, 273, 2982616, 1830034134296583, 4219771415190209120329546223112205, 159545978336249166974717516821935499136450045008874233960892835107904996 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

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

R. F. Wheeler, An asymptotic formula for the number of complete propositional connectives, Z. Math. Logik Grundlagen Math. 8 (1962), 1-4. [Annotated scanned copy]

CROSSREFS

An approximation to A262546.

Sequence in context: A234324 A066210 A036213 * A112901 A213958 A158115

Adjacent sequences:  A262545 A262546 A262547 * A262549 A262550 A262551

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 06 2015

STATUS

approved

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Last modified August 2 08:30 EDT 2021. Contains 346422 sequences. (Running on oeis4.)