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 A104318 Primes which are the reverse concatenation of two consecutive cubes. 1
 6427, 2700024389, 6400059319, 7408868921, 12597121225043, 29859842924207, 89989128869743, 92610009129329, 1600300815813251, 2057082420346417, 2809446427818127, 3930400038958219, 4214419241781923, 4665600046268279, 6993452869426531, 7303463272511713 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Michael S. Branicky, Table of n, a(n) for n = 1..10000 EXAMPLE The first term is 6427 which is a prime and is the reverse concatenation of 27 and 64 which are two consecutive cubes. MATHEMATICA rcat[{a_, b_}]:=FromDigits[Join[IntegerDigits[b], IntegerDigits[a]]]; Select[ rcat/@Partition[Range[500]^3, 2, 1], PrimeQ] (* Harvey P. Dale, Feb 21 2012 *) PROG (Python) from sympy import isprime def aupton(terms): alst, i, s2 = [], 1, "1" while len(alst) < terms: i += 1 s1, s2 = s2, str(i**3) t = int(s2+s1) if isprime(t): alst.append(t) return alst print(aupton(16)) # Michael S. Branicky, Jan 08 2022 CROSSREFS Sequence in context: A259078 A104374 A222554 * A222344 A194720 A140916 Adjacent sequences: A104315 A104316 A104317 * A104319 A104320 A104321 KEYWORD base,nonn AUTHOR Shyam Sunder Gupta, Apr 17 2005 EXTENSIONS a(15)-a(16) from Lorenzo Pinlac, Jan 08 2022 STATUS approved

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Last modified November 29 06:17 EST 2023. Contains 367422 sequences. (Running on oeis4.)