A262548 Nearest integer to 2^(2^(n-1))/(2*n!).

1, 1, 1, 5, 273, 2982616, 1830034134296583, 4219771415190209120329546223112205, 159545978336249166974717516821935499136450045008874233960892835107904996

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