0,2
a(n) = p^n Product (p^n - p^k) for k=0 to n-1
FoldList[ #1*14^#2 (14^#2-1)&, 1, Range[ 20 ] ]
Sequence in context: A015306 A190830 A145525 * A133609 A030465 A147270
Adjacent sequences: A028673 A028674 A028675 * A028677 A028678 A028679
nonn
Olivier Gerard (olivier.gerard(AT)gmail.com)