Taxicab numbers that are sandwiched between nonsquarefree numbers.

Terms

a(0) =20683a(1) =216125a(2) =327763a(3) =593047a(4) =684019a(5) =842751a(6) =1845649a(7) =2691451a(8) =4505949a(9) =4744376a(10) =5004125a(11) =5772403a(12) =6058747a(13) =7640128a(14) =8029000a(15) =8216000a(16) =8494577a(17) =10702783a(18) =10765603a(19) =10821896a(20) =11859211a(21) =12533824a(22) =13731319a(23) =14916727a(24) =16776487a(25) =18406603a(26) =18617625a(27) =20616463a(28) =22031576a(29) =24480125