A106140 Semiprimes (mod 4).

0, 2, 1, 2, 2, 3, 1, 2, 1, 2, 1, 2, 3, 2, 3, 2, 1, 3, 3, 1, 2, 2, 1, 1, 2, 1, 2, 1, 2, 3, 3, 1, 2, 3, 2, 3, 3, 2, 3, 1, 2, 3, 1, 1, 2, 1, 2, 3, 1, 2, 3, 2, 3, 1, 2, 1, 1, 2, 3, 1, 3, 2, 1, 2, 3, 1, 2, 1, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 3, 1, 1, 2, 3, 2, 1, 3, 2, 2, 3, 1, 3, 3, 2, 3, 1, 2, 3, 1, 1, 2, 3, 1, 3, 2, 3

Offset

1,2

Links

Table of n, a(n) for n=1..105.

Crossrefs

Cf. A001358.

Sequence in context: A330372 A111630 A305301 * A355300 A371452 A211097

Adjacent sequences: A106137 A106138 A106139 * A106141 A106142 A106143

Keyword

nonn

Author

Shyam Sunder Gupta, May 07 2005

Status

approved