A028680 Pseudo Galois numbers for d=18.

1, 306, 32023512, 1089004102288704, 12000667955029147591142400, 42847968954950283704312619696092774400, 49567873660106321460531697392097352394556112948428800

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..28

Formula

a(n) = d^n * product(d^n - d^k, k=0..n-1).

Mathematica

FoldList[ #1*18^#2 (18^#2-1)&, 1, Range[ 20 ] ]

Crossrefs

Sequence in context: A023908 A035843 A128477 * A118282 A220475 A282594

Adjacent sequences: A028677 A028678 A028679 * A028681 A028682 A028683

Keyword

nonn

Author

Olivier Gérard

Status

approved