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A254404 a(n) = floor(a(n-1)^(3/2)), a(1) = 4. 1
4, 8, 22, 103, 1045, 33781, 6208815, 15470810960, 1924285995519778, 84412046357073810845036, 24524866000840265443624861229739287, 3840696279681724751490160062668766360564070043725605, 238020820035391513516910494940635409432084649486247633125762760898691133120625 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..13.

FORMULA

a(n) ~ c^((3/2)^n), where c = 2.4979223179189793375148967824709800001224474904593996103376... .

MATHEMATICA

RecurrenceTable[{a[1]==4, a[n]==Floor[a[n-1]^(3/2)]}, a, {n, 1, 15}]

CROSSREFS

Cf. A254403.

Sequence in context: A129788 A170938 A003684 * A254403 A075688 A272563

Adjacent sequences:  A254401 A254402 A254403 * A254405 A254406 A254407

KEYWORD

nonn,easy

AUTHOR

Vaclav Kotesovec, Jan 30 2015

STATUS

approved

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Last modified February 29 05:25 EST 2020. Contains 332353 sequences. (Running on oeis4.)