226 (two hundred [and] twenty-six) is the natural number following 225 and preceding 227.

In mathematics

226 is a happy number,[1] and a semiprime (2×113), and a member of Aronson's sequence.[2] At most 226 different permutation patterns can occur within a single 9-element permutation.[3]

References

  1. ^ Sloane, N. J. A. (ed.). "Sequence A007770 (Happy numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  2. ^ Sloane, N. J. A. (ed.). "Sequence A005224 (Aronson's sequence)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
  3. ^ Sloane, N. J. A. (ed.). "Sequence A088532 (Patterns of permutations)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.