# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a093932 Showing 1-1 of 1 %I A093932 #8 Dec 31 2023 16:39:17 %S A093932 3,7,19,31,47,17,41,13,61,97,37,103,151,73,157,67,131,29,101,367,167, %T A093932 83,919,137,233,383,227,389,109,283,163,349,541,79,419,769,409,557, %U A093932 709,1567,1327,1163,71,673,937,307,491,773,293,587,787,277,797,479,263,43,379,607,839,1193,353,719,347,599,983,593,197,13999,2711,89,509,8887,3559,3121,1493,443,139,601,1069,1543,743,257,2389,563,59,569,53,401,929,2887,547,911,359,1289,3733,503,887,499,107,701,1301,1907,1499,881,1297,877,241,883,1531,5 %N A093932 For n > 0, a(n+1) is the least prime not already used such that abs(a(n+1)-a(n))/2n is prime. %C A093932 The last term is a(110) = 5. The smallest primes that don't occur are 2, 11, 23 and 113. - _David Wasserman_, Mar 07 2007 %e A093932 a(5) = 47 hence a(6) = 17, which has not occurred earlier, as (47-17)/(2*5) = 3 is a prime. %Y A093932 Cf. A093931. %K A093932 nonn,fini,full,less %O A093932 1,1 %A A093932 _Amarnath Murthy_, Apr 25 2004 %E A093932 More terms from _David Wasserman_, Mar 07 2007 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE