a(n) is the number which, when concatenated with A003226(n), the n-th automorphic number, gives (A003226(n))^2.

A307104

a(n) is the number which, when concatenated with A003226(n), the n-th automorphic number, gives (A003226(n))^2.

Terms

    a(0) =0a(1) =0a(2) =2a(3) =3a(4) =6a(5) =57a(6) =141a(7) =390a(8) =8790a(9) =82128a(10) =11963a(11) =793212a(12) =835571a(13) =5054322a(14) =1661682a(15) =75880433a(16) =45322418a(17) =619541169a(18) =319375992a(19) =6745157241a(20) =3317093849a(21) =66891312600a(22) =843114912509

External references