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 A282321 Lesser of twin primes congruent to 11 (mod 30). 8
 11, 41, 71, 101, 191, 281, 311, 431, 461, 521, 641, 821, 881, 1031, 1061, 1091, 1151, 1301, 1451, 1481, 1721, 1871, 1931, 2081, 2111, 2141, 2381, 2591, 2711, 2801, 3251, 3371, 3461, 3581, 3671, 3821, 3851, 4001, 4091, 4241, 4271, 4421, 4481, 4721, 4931, 5021 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The union of [this sequence and A282322] is A132241. The union of [{3, 5}, this sequence, A282323 and A060229] is the lesser of twin primes sequence A001359. The union of [{3, 5, 7}, A282321 to A282326] is the twin primes sequence A001097. LINKS Chai Wah Wu, Table of n, a(n) for n = 1..10000 MAPLE a:={}: for i from 1 to 1229 do if isprime(ithprime(i)+2) and ithprime(i) mod 30 = 11 then a:={op(a), ithprime(i)}: fi: od: a; PROG (Magma) [p: p in PrimesUpTo(5000) | IsPrime(p+2) and p mod 30 eq 11 ]; // Vincenzo Librandi, Feb 12 2017 (PARI) list(lim)=my(v=List(), p=2); forprime(q=3, lim+2, if(q-p==2 && q%30==13, listput(v, p)); p=q); Vec(v) \\ Charles R Greathouse IV, Feb 14 2017 CROSSREFS Subset of A001097, A001359, A132232, A132241 and A132247. Cf. A006512, A232880, A232881, A232882, A282322, A282323, A060229, A060229, A282326. Sequence in context: A238713 A132232 A331555 * A031389 A178495 A309254 Adjacent sequences: A282318 A282319 A282320 * A282322 A282323 A282324 KEYWORD nonn AUTHOR Martin Renner, Feb 11 2017 STATUS approved

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Last modified July 21 12:40 EDT 2024. Contains 374472 sequences. (Running on oeis4.)