Smaller of two consecutive numbers with the same prime signature not occurring earlier.

Terms

a(0) =2a(1) =14a(2) =44a(3) =135a(4) =230a(5) =819a(6) =1274a(7) =2295a(8) =2511a(9) =5264a(10) =7314a(11) =8991a(12) =11780a(13) =21735a(14) =23762a(15) =26900a(16) =29888a(17) =37664a(18) =71994a(19) =98049a(20) =121121a(21) =156735a(22) =177624a(23) =212194a(24) =285075a(25) =328250a(26) =378014a(27) =390165a(28) =458864a(29) =477224