id:A073718 - OEIS Search Results

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Powers of 2 with composite exponents.

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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; listen)

	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: A136264 A100184 A059165 this_sequence A061449 A141840 A065404` `Adjacent sequences: A073715 A073716 A073717 this_sequence A073719 A073720 A073721`
	KEYWORD	`easy,nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Aug 05 2002`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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