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A018048 Powers of fourth root of 2 rounded down. 1
1, 1, 1, 1, 2, 2, 2, 3, 4, 4, 5, 6, 8, 9, 11, 13, 16, 19, 22, 26, 32, 38, 45, 53, 64, 76, 90, 107, 128, 152, 181, 215, 256, 304, 362, 430, 512, 608, 724, 861, 1024, 1217, 1448, 1722, 2048, 2435, 2896, 3444, 4096, 4870 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Matthew House, Table of n, a(n) for n = 0..10000

MAPLE

seq(floor(2^(n/4)), n=0..100); #  Robert Israel, Jul 28 2015

PROG

(PARI) vector(70, n, n--; floor(2^(n/4))) \\ Michel Marcus, Jul 28 2015

(PARI) a(n)=sqrtnint(2^n, 4) \\ Charles R Greathouse IV, Jul 28 2015

CROSSREFS

Cf. A017979.

Sequence in context: A076269 A143644 A104410 * A077564 A088044 A029051

Adjacent sequences:  A018045 A018046 A018047 * A018049 A018050 A018051

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 12 04:21 EST 2019. Contains 329051 sequences. (Running on oeis4.)