login
A321617
Last term of the first occurrence of n consecutive odd squarefree composite numbers.
1
15, 35, 95, 219, 221, 903, 905, 1357
OFFSET
1,1
COMMENTS
See A322493.
MATHEMATICA
Join[{15}, With[{osc=Select[Range[1, 1401, 2], CompositeQ[#]&&SquareFreeQ[ #]&]}, Flatten[Table[Select[Partition[osc, n, 1], Union[Differences[#]] == {2}&, 1], {n, 8}], 1]][[All, -1]]] (* Harvey P. Dale, Feb 10 2019 *)
CROSSREFS
Sequence in context: A061367 A070161 A142591 * A254031 A074480 A194580
KEYWORD
nonn,fini,full
AUTHOR
Hugo Pfoertner, Dec 19 2018
STATUS
approved