Smallest number k with A355915(k) = n.

Terms

a(0) =1a(1) =11a(2) =49a(3) =103a(4) =179a(5) =313a(6) =545a(7) =601a(8) =959a(9) =1087a(10) =1675a(11) =1931a(12) =2813a(13) =2909a(14) =3133a(15) =4565a(16) =4673a(17) =6049a(18) =5089a(19) =8837a(20) =8095a(21) =9463a(22) =10883a(23) =14771a(24) =12023a(25) =9911a(26) =15587a(27) =16883a(28) =17891a(29) =18179