A271041
a(n) = k is the least squarefree number with a run of zero nonsquarefree numbers immediately preceding k and a run of exactly n>=0 nonsquarefree numbers immediately succeeding k.
Original entry on oeis.org
2, 3, 7, 47, 8474, 843, 22019, 826823, 1092746, 33908367, 262315466
Offset: 0
a(3) = 47 since 46, 47 and 51 are squarefree while 48, 49 and 50 constitute the first nonsquarefree triple after a pair of squarefree numbers.
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(* We use function a270996[] from A270996 *)
Map[a270996[{0, 1000000},{0, #}]&,Range[0,7]]
(* computes a(0)...a(7) *)
A271042
a(n) = k is the least squarefree number with a run of n >= 0 nonsquarefree numbers immediately preceding k and a run of zero nonsquarefree numbers immediately succeeding k.
Original entry on oeis.org
2, 1, 10, 101, 246, 1685, 22026, 217077, 7216626, 8870033, 262315477, 221167433, 105779897634, 82462576233
Offset: 0
a(3) = 101 since 97, 101 and 102 are squarefree while 98, 99 and 100 constitute the first nonsquarefree triple followed by a pair of squarefree numbers.
-
(* We use function a270996[] from A270996 *)
Map[a270996[{0, 1000000},{#, 0}]&,Range[0,7]]
(* computes a(0)...a(7) *)
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