A055480 et al

[Jens Voss]

FYI: I have submitted correction requests for A055480 and A072096 to be
classified as "base" sequences.

Regards,
Jens


> -----Original Message-----
> From: "David Wilson" <mailto:davidwwilson at attbi.com>
> Sent: Mi, 29.01.03 20:49
> Subject: A055480 et al
> 
> After NJAS added my fix, A055480 had a very long %N line.  I have modified
> A055480
> to reduce the %N line and retain the information.  I also include a new
> variant sequence.
> 
> %I A055480
> %S A055480
> 24,43,63,89,100,101,102,103,104,105,106,107,108,109,132,135,142,153,175,
> %T A055480
> 209,224,226,262,264,267,283,284,332,333,334,357,370,371,372,373,374,375,
> %U A055480
> 376,377,378,379,407,445,463,518,568,598,629,739,794,809,849,935,994,1000
> %N A055480 Energetic numbers
> %C A055480 Numbers that can be broken into two or more substrings and
> expressed as a sum of (possibly different) positive powers of those
> substrings.
> %D A055480 Frank Rubin, Journal of Recreational Mathematics, Volume 12,
> Number 2, Page 139.
> %e A055480 142 = 14^1 + 2^7, 8833 = 88^2 + 33^2.
> %Y A055480 This is a less stringent condition that that of a "powerful"
> number - compare A007532.
> %K A055480 nonn,new
> %O A055480 1,1
> %A A055480 Robert G. Wilson v (RGWv at kspaint.com), Jul 05 2000
> %E A055480 More terms from Robert G. Wilson v (rgwv at kspaint.com), Mar 07
> 2002
> %E A055480 Edited by David W. Wilson, Jan 29, 2003.
> 
> 
> 
> %I A000000
> %S A000000
> 24,43,63,89,100,101,102,103,104,105,106,107,108,109,132,135,142,153,175,
> %T A000000
> 209,224,226,254,257,258,262,263,264,267,283,284,308,332,333,334,347,357,
> %U A000000
> T70,371,372,373,374,375,376,377,378,379,407,445,463,472,518,538,568,598
> %N A000000 Energetic numbers, allowing zero as an exponent.
> %C A000000 Numbers that can be broken into two or more substrings and
> expressed as a sum of (possibly different) nonnegative powers of those
> substrings.
> %C A000000 254 = 2^7 + 5^3 + 4^0 is the first element requiring a zero
> exponent.
> %e A000000 142 = 14^1 + 2^7, 8833 = 88^2 + 33^2.
> %Y A000000 See A055480.
> %K A000000 nonn,new
> %O A000000 1,1
> %A A000000 David W. Wilson (davidwwilson at attbi.com)
> 
> 
>