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A341828
Difference of consecutive odd squarefree semiprimes.
4
6, 12, 2, 4, 12, 4, 2, 8, 4, 8, 8, 2, 4, 2, 2, 16, 4, 4, 4, 6, 4, 8, 2, 2, 10, 4, 2, 16, 6, 2, 2, 14, 2, 2, 4, 4, 2, 2, 2, 2, 14, 2, 10, 2, 4, 6, 6, 2, 20, 4, 4, 4, 2, 2, 2, 4, 10, 2, 2, 4, 2, 6, 4, 2, 14, 10, 6, 6, 4, 10, 2, 2, 8, 4, 4, 2, 2, 2, 10, 10, 8, 2, 4
OFFSET
1,1
PROG
(PARI) lista(nn) ={my(r=15); forstep(k=17, nn, 2, if(bigomega(k)==2 && issquarefree(k), print1(k-r, ", "); r=k)); } \\ Jinyuan Wang, Mar 01 2021
CROSSREFS
Sequence in context: A084342 A243045 A242931 * A110645 A064913 A066401
KEYWORD
nonn
AUTHOR
Ravi Bhandari, Feb 20 2021
EXTENSIONS
More terms from Jinyuan Wang, Mar 01 2021
STATUS
approved