a(n) is the least start of exactly n consecutive numbers k that are sqrt(k)-smooth (A048098), or -1 if no such run exists.

A355434

a(n) is the least start of exactly n consecutive numbers k that are sqrt(k)-smooth (A048098), or -1 if no such run exists.

Terms

    a(0) =1a(1) =8a(2) =48a(3) =1518a(4) =5828a(5) =28032a(6) =304260a(7) =290783a(8) =1255500a(9) =4325170a(10) =11135837a(11) =18567909a(12) =321903029a(13) =1394350275a(14) =287946949a(15) =1659945758a(16) =38882519234

External references