A093180 Odd composites (including 1 in the count) where the number 1 mod 4 equals the number 3 mod 4.

26829, 26845, 26853, 26857, 26865, 26869, 26873, 26877, 26885, 26889, 26897, 26917, 616765, 616773, 616777, 616785, 616825, 616833, 616837, 616845, 616853, 616857, 616861, 616865, 616869, 616873, 616881, 616885, 616889, 616893, 617013

Offset

1,1

Comments

This odd composite race seems analogous to the prime number race

Links

Table of n, a(n) for n=1..31.

Formula

Beginning with 1, run separate counts for odd composites 1 mod 4 and 3 mod 4. When the count is equal, record the number for 1 mod 4.

Example

a(1)=26829 is the first odd composite 1 mod 4 where the count 5238 is the same for 26835 3 mod 4

Crossrefs

Cf. A007350, A007351, A038691, A093181, A093182.

Sequence in context: A253162 A185774 A234158 * A093181 A235751 A235814

Adjacent sequences: A093177 A093178 A093179 * A093181 A093182 A093183

Keyword

easy,nonn

Author

Enoch Haga, Mar 27 2004

Status

approved