a(n) is the least number k that is not a quadratic residue modulo prime(n) but is a quadratic residue modulo all previous primes.

A377212

a(n) is the least number k that is not a quadratic residue modulo prime(n) but is a quadratic residue modulo all previous primes.

Terms

    a(0) =2a(1) =3a(2) =6a(3) =21a(4) =15a(5) =91a(6) =246a(7) =429a(8) =1005a(9) =399a(10) =3094a(11) =3045a(12) =21099a(13) =41155a(14) =43059a(15) =404754a(16) =214230a(17) =569130a(18) =182919a(19) =2190279a(20) =860574a(21) =9361374a(22) =8042479a(23) =33440551a(24) =36915670a(25) =11993466a(26) =287638530a(27) =182528031a(28) =697126530a(29) =78278655

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