A093182 Counts where both the odd composites (starting from 1) 1 mod 4 and 3 mod 4 are equal.

5238, 5241, 5242, 5243, 5244, 5245, 5246, 5247, 5248, 5249, 5250, 5255, 129008, 129009, 129010, 129012, 129020, 129021, 129022, 129023, 129024, 129025, 129026, 129027, 129028, 129029, 129030, 129031, 129032, 129033, 129058, 129059, 129060

Offset: 1

Author

Enoch Haga, Mar 27 2004

Keywords

• easy
• nonn

Examples

			At 26829 1 mod 4 and 26835 3 mod 4, the count of odd composites is equal for each run at 5238; so a(1)=5238. [Compare to the prime 26833 1 mod 4 where equality occurs at count 1471 and the first reversal in the race occurs at 26861.]
		

Crossrefs

Cf. A093180, A093181, A007350, A007351, A038691.

Formula

Run separate counts of odd composites 1 mod 4 and 3 mod 4. When the count is equal, record the count.