A093181 - OEIS

A093181

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

26835, 26851, 26855, 26859, 26867, 26871, 26875, 26883, 26887, 26895, 26899, 26923, 616771, 616775, 616779, 616795, 616831, 616835, 616839, 616847, 616851, 616855, 616859, 616863, 616867, 616875, 616879, 616883, 616887, 616891, 617007

(list; graph; refs; listen; history; text; internal format)

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 3 mod 4.

EXAMPLE

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

CROSSREFS

Cf. A007350, A007351, A038691, A093180, A093182.

Sequence in context: A185774 A234158 A093180 * A235751 A235814 A199547

Adjacent sequences: A093178 A093179 A093180 * A093182 A093183 A093184

KEYWORD

easy,nonn

AUTHOR

Enoch Haga, Mar 27 2004

STATUS

approved