a(0) = 32; then, for n >= 1, a(n) is the smallest positive integer k such that pod(k^2)/pod(k) = A002473(n) where pod = product of digits = A007954.

A351809

a(0) = 32; then, for n >= 1, a(n) is the smallest positive integer k such that pod(k^2)/pod(k) = A002473(n) where pod = product of digits = A007954.

Terms

    a(0) =32a(1) =1a(2) =2a(3) =3a(4) =15a(5) =381a(6) =25a(7) =61a(8) =12a(9) =27a(10) =16a(11) =41a(12) =28a(13) =23a(14) =336a(15) =13a(16) =1766a(17) =26a(18) =43a(19) =2675a(20) =118a(21) =278a(22) =74a(23) =22a(24) =76a(25) =128a(26) =392a(27) =343a(28) =228a(29) =121

External references