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A214627 Primes in A161671. 0
2, 3, 7, 19, 29, 43, 47, 71, 83, 101, 113, 193, 197, 229, 241, 271, 283, 293, 311, 347, 383, 439, 457, 463, 491, 499, 523, 587, 619, 643, 683, 733, 797, 827, 857, 863, 919, 991, 1021, 1031, 1091, 1151, 1187, 1289, 1367, 1549, 1567, 1619, 1637, 1693, 1697, 1733, 1741, 1811, 1867, 1871, 1907 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..57.

FORMULA

A161671 INTERSECT A000040.

MAPLE

isA214627 := proc(n)

        if isprime(n) then

                for j from 1 do

                        if A161671(j) = n then

                                return true;

                        elif j >7 and A161671(j) > n then

                                return false;

                        end if;

                end do:

        else

                false;

        end if;

end proc:

for n from 2 to 2000 do

        if isA214627(n) then

                printf("%d, ", n) ;

        end if;

end do; # R. J. Mathar, Aug 09 2012

CROSSREFS

Cf. A141468, A161671.

Sequence in context: A246373 A074855 A038935 * A073640 A174568 A005382

Adjacent sequences:  A214624 A214625 A214626 * A214628 A214629 A214630

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Aug 08 2012

STATUS

approved

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Last modified July 14 10:28 EDT 2020. Contains 335721 sequences. (Running on oeis4.)