n-th term in Recamán's sequence A005132 is divisible by n.

Terms

a(0) =1a(1) =3a(2) =11a(3) =21a(4) =39a(5) =76a(6) =248a(7) =844a(8) =1520a(9) =2752a(10) =9317a(11) =17223a(12) =31221a(13) =57071a(14) =99741a(15) =589932a(16) =58056875a(17) =101769229a(18) =302890748a(19) =511561220a(20) =904036924a(21) =39488697700a(22) =325374626148a(23) =535755688021