cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A127050 A007376(2n+1).

Original entry on oeis.org

1, 3, 5, 7, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 1, 0, 1, 3, 0, 1, 5, 0
Offset: 0

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Author

N. J. A. Sloane, Jul 23 2008

Keywords

Comments

This and the other "decimations" of A007376 were suggested by a problem in Honsberger's book.

References

  • R. Honsberger, Mathematical Chestnuts from Around the World, MAA, 2001; see p. 163.

Crossrefs

Programs

  • Python
    from itertools import islice, count
    def A127050gen(): return islice((int(d) for n in count(0) for d in str(n)),1,None,2)
    A127050_list = list(islice(A127050gen(),40)) # Chai Wah Wu, Dec 04 2021