a(1) = 2, a(n) = k - 1, where k is the least number greater than a(n-1) such that rad(k) | a(n-1), where rad(n) = A007947(n).

A365413

a(1) = 2, a(n) = k - 1, where k is the least number greater than a(n-1) such that rad(k) | a(n-1), where rad(n) = A007947(n).

Terms

    a(0) =2a(1) =3a(2) =8a(3) =15a(4) =24a(5) =26a(6) =31a(7) =960a(8) =971a(9) =942840a(10) =944783a(11) =946728a(12) =948675a(13) =950624a(14) =952575a(15) =954528a(16) =956483a(17) =958440a(18) =959999a(19) =2229048a(20) =2232035a(21) =2235024a(22) =2238015a(23) =2241008a(24) =2244003a(25) =2247000a(26) =2249999a(27) =2253000a(28) =2256003a(29) =2259008

External references