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.

A305462 Fixed points of A305458.

Original entry on oeis.org

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 18, 19, 20, 21, 24, 25, 26, 27, 30, 31, 32, 33, 36, 37, 38, 39, 60, 61, 62, 63, 66, 67, 68, 69, 90, 91, 92, 93, 96, 97, 98, 99, 120, 121, 122, 123, 126, 127, 128, 129, 150, 151, 152, 153, 156, 157, 158, 159, 180
Offset: 1

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Author

Rémy Sigrist, Jun 01 2018

Keywords

Comments

Equivalently, these are the numbers with all digits, except possibly the leading digit, equal to zero or one in primorial base.

Examples

			The first terms, alongside their primorial base representation, are:
  n   a(n)    pbr(a(n))
  --  ----    ---------
   1     0    (0)
   2     1    (1)
   3     2    (1, 0)
   4     3    (1, 1)
   5     4    (2, 0)
   6     5    (2, 1)
   7     6    (1, 0, 0)
   8     7    (1, 0, 1)
   9     8    (1, 1, 0)
  10     9    (1, 1, 1)
  11    12    (2, 0, 0)
  12    13    (2, 0, 1)
  13    14    (2, 1, 0)
  14    15    (2, 1, 1)
  15    18    (3, 0, 0)
		

Crossrefs

Cf. A305458.