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!)
A053052 Append n to previous term, reverse alternate terms. 1


%S 1,21,123,4321,12345,654321,1234567,87654321,123456789,10987654321,

%T 1234567891011,121110987654321,12345678910111213,1413121110987654321,

%U 123456789101112131415

%N Append n to previous term, reverse alternate terms.

%D Felice Russo, A set of new Smarandache functions, sequences and conjectures in number theory, American Research Press 2000

%Y A000422, A007908.

%K easy,base,nonn

%O 1,2

%A _Felice Russo_, Feb 25 2000

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 July 24 23:25 EDT 2021. Contains 346273 sequences. (Running on oeis4.)