a(n) is the first term of the sexy prime quadruple a(n), a(n)+6, a(n)+12 and a(n)+18 that becomes a perfect square if the rightmost digit (1) is removed.
A092445
a(n) is the first term of the sexy prime quadruple a(n), a(n)+6, a(n)+12 and a(n)+18 that becomes a perfect square if the rightmost digit (1) is removed.
Terms
- a(0) =11a(1) =41a(2) =251a(3) =641a(4) =4001a(5) =68891a(6) =121001a(7) =163841a(8) =198811a(9) =466561a(10) =497291a(11) =1115561a(12) =2560361a(13) =6561001a(14) =6806251a(15) =7516891a(16) =11793961a(17) =13712411a(18) =34633211a(19) =47436841a(20) =52670251a(21) =71824001a(22) =84739211
External references
- oeis: A092445