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A073718 Powers of 2 with composite exponents. 1
16, 64, 256, 512, 1024, 4096, 16384, 32768, 65536, 262144, 1048576, 2097152, 4194304, 16777216, 33554432, 67108864, 134217728, 268435456, 1073741824, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

a(n)=2^A002808(n)=A000079[A002808(n)]

MATHEMATICA

Table[2^FixedPoint[n+PrimePi[ # ]+1&, n], {n, 1, 30}]

CROSSREFS

Cf. A000079, A002808.

Sequence in context: A100184 A190099 A059165 * A061449 A168091 A181208

Adjacent sequences:  A073715 A073716 A073717 * A073719 A073720 A073721

KEYWORD

easy,nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Aug 05 2002

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Last modified February 17 17:35 EST 2012. Contains 206061 sequences.