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A171494 a(n) = 2*a(n-1) for n > 1; a(0) = 6, a(1) = 16. 3
6, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

16*A000079 preceded by 6.

Binomial transform of A010726.

Inverse binomial transform of A171495.

LINKS

Table of n, a(n) for n=0..28.

FORMULA

a(n) = 2^(n+3) for n > 0; a(0) = 6.

G.f.: 2*(3+2*x)/(1-2*x).

PROG

(PARI) {m=29; v=concat([6, 16], vector(m-2)); for(n=3, m, v[n]=2*v[n-1]); v}

CROSSREFS

Equals 2*A171497.

Cf. A000079 (powers of 2), A010726 (repeat 6, 10), A171495.

Sequence in context: A243763 A061235 A239358 * A201055 A071857 A099399

Adjacent sequences:  A171491 A171492 A171493 * A171495 A171496 A171497

KEYWORD

nonn

AUTHOR

Klaus Brockhaus, Dec 10 2009

STATUS

approved

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Last modified June 21 18:33 EDT 2021. Contains 345365 sequences. (Running on oeis4.)