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A258576
a(n) = A085909(n) - prime(n).
1
2, 6, 6, 6, 6, 12, 18, 8, 12, 16, 6, 18, 24, 6, 8, 12, 12, 12, 30, 10, 18, 48, 270, 6, 6, 6, 30, 18, 180, 36, 20, 12, 42, 30, 6, 10, 30, 6, 60, 12, 60, 6, 30, 30, 12, 256, 6, 12, 48, 18, 30, 42, 6, 6, 8, 12, 60, 30, 30, 54, 24, 6, 36, 36, 456, 22, 72, 72, 30
OFFSET
2,1
COMMENTS
Apparently a(n) (and A085909(n)) exists for all n.
EXAMPLE
a(2) = A085909(2)-prime(2) = 5-3 = 2, a(3) = A085909(3)-prime(3) = 11-5 = 6,
a(10^9) = A085909(10^9)-prime(10^9) = 22801763867-22801763489 = 24.
CROSSREFS
Sequence in context: A137479 A304363 A247097 * A278253 A294961 A048765
KEYWORD
nonn
AUTHOR
Zak Seidov, Jun 04 2015
STATUS
approved