Primes p such that p+1, p+2, p+3, p+4 and p+5 have equal number of divisors.

Terms

a(0) =13781a(1) =19141a(2) =21493a(3) =50581a(4) =142453a(5) =152629a(6) =253013a(7) =298693a(8) =307253a(9) =346501a(10) =507781a(11) =543061a(12) =845381a(13) =1079093a(14) =1273781a(15) =1354501a(16) =1386901a(17) =1492069a(18) =1546261a(19) =1661333a(20) =1665061a(21) =1841141a(22) =2192933a(23) =2208517a(24) =2436341a(25) =2453141a(26) =2545013