Numbers k such that k + (largest digit of k)! is a square.

Terms

a(0) =0a(1) =2a(2) =3a(3) =30a(4) =40a(5) =64a(6) =81a(7) =105a(8) =436a(9) =484a(10) =505a(11) =729a(12) =736a(13) =1022a(14) =1105a(15) =1216a(16) =1420a(17) =1936a(18) =2203a(19) =2416a(20) =2644a(21) =2704a(22) =3130a(23) =3340a(24) =3636a(25) =3780a(26) =4105a(27) =4176a(28) =4201a(29) =4332