OFFSET
0,3
LINKS
Paul D. Hanna, Table of n, a(n) for n = 0..1040
FORMULA
a(n) ~ c * 4^n / sqrt(n), where c = 0.1893687633123847717351285248043394631769854231497885277419320199497639583... - Vaclav Kotesovec, Jun 15 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Jan 16 2007
STATUS
approved