a(n) is the least k for which omega(k)*omega(k + 1)*omega(k + 2) = n where omega = A001221, or -1 if no such k exists.

A392184

a(n) is the least k for which omega(k)*omega(k + 1)*omega(k + 2) = n where omega = A001221, or -1 if no such k exists.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =29a(4) =10a(5) =2309a(6) =28a(7) =1138829a(8) =20a(9) =130a(10) =2308a(11) =239378649509a(12) =68a(14) =570569a(15) =2728a(16) =208a(18) =154

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