Numbers k such that A372720(k) = 0.

Terms

a(0) =1a(1) =500a(2) =578a(3) =722a(4) =750a(5) =1058a(6) =1500a(7) =1682a(8) =1922a(9) =2646a(10) =2744a(11) =3430a(12) =3645a(13) =4800a(14) =5202a(15) =5346a(16) =5476a(17) =5488a(18) =5625a(19) =6318a(20) =6400a(21) =6724a(22) =7168a(23) =7396a(24) =8000a(25) =8836a(26) =10092a(27) =10976a(28) =11236a(29) =11532