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User:Georg Fischer

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OEIS contributions and favorites

OEIS maintenance projects



  • Java, database, web applications, programming languages (speaking ALGOL 60, FORTRAN, PL/1, Pascal, Simula 67, C, Perl, Java, XSLT, SQL, JavaScript, understanding COBOL)
  • Web (xHTML, CSS, SVG,
  • Symbolic computation (c.f.

Community Projects

  • Wikipedia: de, en, fr
  • OpenStreetMap

Number Theory

  • Diophantine equations, especially power sums
  • Fermat's lost proofs (except for FLT) with infinite descent



  • 1947 born in Waldshut, southern Germany.
  • 1968 - 1975 Studies of Mathematics in Freiburg, and Computer Science in München, Germany.
  • 1976 Software engineer at Softlab GmbH, München
  • 1977 - 1980 Assistant at the Department of Computer Science, Dortmund, Germany. PhD in Compiler Construction: Incremental LR(1) Parser Construction as an Aid to Syntactical Extensibility
  • 1980 - 1985 Chief consultant again at Softlab GmbH
  • 1986 - 1994 Owner and Technical CEO of punctum GmbH, Munich (with two partners)
  • 1995 - 1998 Maintenance and marketing of converter software, mainly for floppy disk file structures and text processing formats
  • 1999 - 2004 Freelancer in Y2K, ISIN, Euro conversion projects at Commerzbank; computer aided software analysis
  • 2005 - 2012 Principal Database Engineer at Commerzbank AG, Frankfurt, Germany; software metadata analysis and display
  • 2012 - retired
  • 2017 - IT-related development projects: microfinance database in Madagascar, Java programming training on Java (Bekasi, Indonesia)
  • today - living in D-79341 Kenzingen, South-West Germany. at the border of the Black Forest; speaking German, English and some French