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

Author

Felice Russo, Feb 25 2000

Keywords

• easy
• base
• nonn

References

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

Crossrefs

Cf. A000422, A007908.