A094334 a(1) = 1, a(n) = least multiple of a(n-1) which is the reverse concatenation of successive numbers. Terms with more than one digit must be a concatenation of at least two successive numbers.

1, 2, 4, 8, 32, 1312, 15851584, 1252454512524544, 11620214297799691162021429779968, 1452352225788490702204704977561714523522257884907022047049775616

Offset

1,2

Links

Paul Tek, Table of n, a(n) for n = 1..13

Example

a(5) = 32 and a(6) = 1312 (concatenation of 13 and 12 ), 1312=32*41.

Crossrefs

Cf. A094333.

Sequence in context: A064378 A191650 A036544 * A138744 A243547 A263623

Adjacent sequences: A094331 A094332 A094333 * A094335 A094336 A094337

Keyword

base,nonn

Author

Amarnath Murthy, May 16 2004

Extensions

a(7)-a(13) from Paul Tek, Jul 27 2013

Status

approved