Numbers m such that m, m+1 and m+2 are squarefree.

Terms

a(0) =1a(1) =5a(2) =13a(3) =21a(4) =29a(5) =33a(6) =37a(7) =41a(8) =57a(9) =65a(10) =69a(11) =77a(12) =85a(13) =93a(14) =101a(15) =105a(16) =109a(17) =113a(18) =129a(19) =137a(20) =141a(21) =157a(22) =165a(23) =177a(24) =181a(25) =185a(26) =193a(27) =201a(28) =209a(29) =213