p-INVERT of the positive integers, where p(S) = 1 - 4*S + S^2.

A291026

p-INVERT of the positive integers, where p(S) = 1 - 4*S + S^2.

Terms

    a(0) =4a(1) =23a(2) =128a(3) =711a(4) =3948a(5) =21920a(6) =121700a(7) =675673a(8) =3751296a(9) =20826953a(10) =115629868a(11) =641969344a(12) =3564171060a(13) =19788040311a(14) =109861881472a(15) =609945846247

External references