Self-convolution of (1^3, 2^3, 3^3, 4^3, ... ).

Terms

a(0) =1a(1) =16a(2) =118a(3) =560a(4) =2003a(5) =5888a(6) =14988a(7) =34176a(8) =71445a(9) =139216a(10) =255970a(11) =448240a(12) =752999a(13) =1220480a(14) =1917464a(15) =2931072a(16) =4373097a(17) =6384912a(18) =9142990a(19) =12865072a(20) =17817019a(21) =24320384a(22) =32760740a(23) =43596800a(24) =57370365a(25) =74717136a(26) =96378426a(27) =123213808