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!)
A181182 Primes in A181178. 2

%I #14 Aug 19 2013 23:21:58

%S 11,31,41,61,71,137,193,257,467,1399,2887,35999,599699,4987999,

%T 589998989,2899889999,58989999989,58799999999999,579999998999999,

%U 19999999999997999,199999999999898999,499999999999899989,699999999999979999,799999999999988999,4999999999998899999,7999999999998999899,79999999999988999999

%N Primes in A181178.

%H Max Alekseyev, <a href="/A181182/b181182.txt">Table of n, a(n) for n = 1..50</a>

%F Intersection of A000040 and A181178.

%e a(2) = 31 because 31 is prime, and is the 4th (zero-free positive) number with digital sum 4 {4,13,22,31,112,121,211,1111}.

%Y Cf. A000040, A007953, A069800, A181178

%K nonn,base

%O 1,1

%A _Jonathan Vos Post_, Jan 25 2011

%E a(13) and a(14) from _Zak Seidov_, Jan 26 2011

%E Terms a(15) onward from _Max Alekseyev_, Aug 19 2013

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 August 18 12:46 EDT 2024. Contains 375269 sequences. (Running on oeis4.)