Search: id:A096101 Results 1-1 of 1 results found. %I A096101 %S A096101 1,3,2,2,2,3,170,46600,1901907,65157236 %N A096101 a(1) = 1; for n > 1: a(n) = smallest number >1 such that product of any two or more successive terms - 1 is prime. %C A096101 Next term > 20000000 if it exists. %e A096101 a(2) is not 2 since 1*2-1 = 1 is not prime, but 1*3-1 = 2 is prime, hence a(2) = 3. a(6) is not 2 since 2*2*2*2-1 = 15 is not prime, but 2*3-1 = 5, 2*2*3-1 = 11, 2*2*2*3-1 = 23, 3*2*2*2*3-1 = 71 are all prime, hence a(6) = 3. %Y A096101 Cf. A096100. %Y A096101 Sequence in context: A141070 A163751 A067279 this_sequence A104890 A064123 A024703 %Y A096101 Adjacent sequences: A096098 A096099 A096100 this_sequence A096102 A096103 A096104 %K A096101 more,nonn %O A096101 1,2 %A A096101 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jun 24 2004 %E A096101 Edited and extended by Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Jul 05 2004 %E A096101 a(10) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Apr 22 2008 Search completed in 0.001 seconds