A175219 The fourth nonprimes after the primes.

9, 9, 10, 12, 16, 18, 22, 24, 27, 34, 35, 42, 46, 48, 51, 57, 64, 65, 72, 76, 77, 84, 87, 93, 102, 106, 108, 112, 114, 117, 132, 135, 142, 143, 154, 155, 161, 168, 171, 177, 184, 185, 196, 198, 202, 203, 215, 228, 232, 234, 237, 244, 245, 255, 261, 267, 274

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

Module[{nn=1000, cmps}, cmps=Partition[Select[Range[nn], CompositeQ], 4, 1]; Table[SelectFirst[ cmps, #[[1]]>p&], {p, Prime[Range[PrimePi[cmps[[-1, 1]]]]]}]][[;; , 4]] (* Harvey P. Dale, Aug 07 2023 *)

Crossrefs

Sequence in context: A282987 A118662 A305503 * A124475 A179057 A350919

Adjacent sequences: A175216 A175217 A175218 * A175220 A175221 A175222

Keyword

nonn

Author

Jaroslav Krizek, Mar 06 2010

Extensions

More terms from Harvey P. Dale, Aug 07 2023

Status

approved