A053052 Append n to the previous term, reverse alternate terms.

1, 21, 123, 4321, 12345, 654321, 1234567, 87654321, 123456789, 10987654321, 1234567891011, 121110987654321, 12345678910111213, 1413121110987654321, 123456789101112131415

Offset

1,2

References

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

Links

Table of n, a(n) for n=1..15.

Crossrefs

Cf. A000422, A007908.

Sequence in context: A164785 A179956 A117388 * A243882 A002299 A303807

Adjacent sequences: A053049 A053050 A053051 * A053053 A053054 A053055

Keyword

easy,base,nonn

Author

Felice Russo, Feb 25 2000

Status

approved