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A093182 Counts where both the odd composites (starting from 1) 1 mod 4 and 3 mod 4 are equal. 2
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..33.

FORMULA

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

EXAMPLE

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.

Sequence in context: A237408 A235296 A260176 * A124658 A256745 A206165

Adjacent sequences:  A093179 A093180 A093181 * A093183 A093184 A093185

KEYWORD

easy,nonn

AUTHOR

Enoch Haga, Mar 27 2004

STATUS

approved

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Last modified October 23 17:37 EDT 2021. Contains 348215 sequences. (Running on oeis4.)