Least k > 0 such that gcd(k^n+4, (k+1)^n+4) > 1, or 0 if there is no such k.

Terms

a(0) =1a(1) =0a(2) =8a(3) =210a(4) =1a(5) =82a(6) =128a(7) =4763358550a(8) =1a(9) =22a(10) =8a(12) =1a(14) =7784a(15) =100a(16) =1a(18) =8a(19) =179a(20) =1a(21) =4082a(22) =48a(24) =1a(25) =173a(26) =8a(27) =5a(28) =1a(29) =2423a(30) =320a(31) =342a(32) =1a(33) =1162