id:A096854 - OEIS Search Results

Search: id:A096854

Displaying 1-1 of 1 results found.

page 1

a(n)=A062402[ -1+2^n].

+0
3

1, 3, 12, 15, 72, 91, 312, 255, 1240, 1860, 4123, 5080, 26208, 34200, 93600, 65535, 334368, 416560, 1420800, 1596364, 6146800, 5949696, 20485332, 23788842, 120519630, 194016600, 358132380, 458803800, 1674738000, 2166798816 (list; graph; listen)

	OFFSET	`1,2`
	MATHEMATICA	`Table[DivisorSigma[1, EulerPhi[ -1+2^w]], {w, 1, 30}]`
	CROSSREFS	`Cf. A062401, A062402, A053287, A096853-A096856.` `Adjacent sequences: A096851 A096852 A096853 this_sequence A096855 A096856 A096857` `Sequence in context: A022380 A005392 A001196 this_sequence A013191 A009783 A064106`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jul 19 2004`

page 1

Search completed in 0.002 seconds

Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

AT&T Labs Research