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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A028672 Pseudo Galois numbers for d=10. 1 1, 90, 891000, 890109000000, 89001998910000000000, 890011088900109000000000000000, 890010198889020099891000000000000000000000 (list; graph; refs; listen; history; text; internal format) OFFSET 0,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..31 FORMULA a(n) = d^n * product(d^n - d^k, k=0..n-1). MATHEMATICA FoldList[ #1*10^#2 (10^#2-1)&, 1, Range[ 20 ] ] CROSSREFS Sequence in context: A066784 A135321 A135428 * A172650 A353038 A252093 Adjacent sequences: A028669 A028670 A028671 * A028673 A028674 A028675 KEYWORD nonn AUTHOR Olivier Gérard STATUS approved

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Last modified August 18 08:40 EDT 2024. Contains 375255 sequences. (Running on oeis4.)