OFFSET
1,1
FORMULA
a(n) = floor(3^((3/2)^(n-1))).
MATHEMATICA
Floor[RecurrenceTable[{a[1]==3, a[n]==a[n-1]^(3/2)}, a, {n, 1, 15}]]
Table[Floor[3^((3/2)^(n-1))], {n, 1, 15}
Floor[NestList[#^(3/2)&, 3, 15]] (* Harvey P. Dale, Aug 11 2021 *)]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vaclav Kotesovec, Jan 30 2015
STATUS
approved