The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.



(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A055724 Number of lucky twins <= 10^n. 0


%S 1,2,7,33,178,1162,7669,55548,419174,3274570,26298112

%N Number of lucky twins <= 10^n.

%H W. Schneider, <a href="http://web.archive.org/web/2004/www.wschnei.de/number-theory/lucky-numbers.html">Lucky Numbers</a>

%Y Cf. A000959.

%K nonn

%O 0,2

%A _Robert G. Wilson v_, Jun 09 2000

%E a(7),a(8),a(9) were calculated by Walter Schneider (wschnei(AT)t-online.de).

%E a(10) from _Robert G. Wilson v_, Aug 22 2015.

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 15 18:51 EDT 2021. Contains 342977 sequences. (Running on oeis4.)