a(n) is the least positive integer that can be expressed as the sum of two distinct perfect powers (A001597) in exactly n ways.

A365295

a(n) is the least positive integer that can be expressed as the sum of two distinct perfect powers (A001597) in exactly n ways.

Terms

    a(0) =1a(1) =5a(2) =17a(3) =129a(4) =468a(5) =1025a(6) =2628a(7) =12025a(8) =32045a(9) =27625a(10) =138125a(11) =430625a(12) =204425a(13) =160225a(14) =2010025a(15) =2348125a(16) =801125a(17) =1743625a(18) =2082925a(19) =4978025a(20) =4005625a(21) =12325625a(22) =30525625a(23) =73046025a(24) =5928325a(25) =13287625a(26) =46437625a(27) =45177925a(28) =35409725a(29) =120737825

External references