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A360841
4-full numbers (A036967) sandwiched between twin primes.
4
2592, 139968, 995328, 37340352, 63700992, 99574272, 169869312, 414720000, 1399680000, 4076863488, 10871635968, 17714700000, 22781250000, 25312500000, 35888419872, 51840000000, 82012500000, 98802571392, 135304020000, 136136700000, 170749797552, 174960000000, 196730062848
OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..1520 (terms below 3*10^19)
Eric Weisstein's World of Mathematics, Twin Primes.
EXAMPLE
2592 = 2^5 * 3^4 is a term since it is 4-full and 2591 and 2593 are twin primes.
MATHEMATICA
Select[6*Range[2*10^5], PrimeQ[# - 1] && PrimeQ[# + 1] && Min[FactorInteger[#][[;; , 2]]] > 3 &]
PROG
(PARI) is(n) = isprime(n-1) && isprime(n+1) && vecmin(factor(n)[, 2]) > 3;
CROSSREFS
Intersection of A014574 and A036967.
Subsequence of A113839 and A360840.
Sequence in context: A096298 A204782 A204775 * A269192 A033695 A269141
KEYWORD
nonn
AUTHOR
Amiram Eldar, Feb 23 2023
STATUS
approved