For p = prime(n), a(n) is the smallest N such that pN is a base-2 pseudoprime (that is, 2^(pN-1) = 1 mod pN).
A086000
For p = prime(n), a(n) is the smallest N such that pN is a base-2 pseudoprime (that is, 2^(pN-1) = 1 mod pN).
Terms
- a(0) =187a(1) =129a(2) =247a(3) =31a(4) =85a(5) =33a(6) =73a(7) =89a(8) =85a(9) =11a(10) =73a(11) =161a(12) =15a(13) =93a(14) =157a(15) =233a(16) =481a(17) =133a(18) =281a(19) =19a(20) =391a(21) =1067a(22) =23a(23) =193a(24) =601a(25) =307a(26) =6361a(27) =37a(28) =29a(29) =15
External references
- oeis: A086000