login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A048933 Smallest factor i of any factorization used in the definition of A014575(n). 6

%I #18 Mar 01 2019 20:09:01

%S 21,15,35,30,21,27,80,201,260,210,204,150,135,158,152,161,167,141,201,

%T 231,281,152,231,204,251,201,261,140,179,311,323,315,317,231,351,215,

%U 146,350,351,317,156,300,251,261,356,240,269,165,176,396,221,231,371,231,225,201,225,281,216,210,210,327,395,275,252,255

%N Smallest factor i of any factorization used in the definition of A014575(n).

%D C. A. Pickover, "Vampire Numbers." Ch. 30 in Keys to Infinity. New York: Wiley, pp. 227-231, 1995.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/VampireNumber.html">Vampire Number.</a>

%p # print d, not a, in the program of A014575 - _R. J. Mathar_, Jul 15 2016

%Y The following sequences are all closely related: A020342, A014575, A080718, A048936, A144563.

%Y Cf. A048934, ..., A048939.

%K nonn,base

%O 1,1

%A _Eric W. Weisstein_

%E Edited by _N. J. A. Sloane_, Jan 03 2009

%E More terms from _R. J. Mathar_, Jul 15 2016

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 15:11 EDT 2024. Contains 371794 sequences. (Running on oeis4.)