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A093008
Smallest number of 1's to append to the binary representation of n such that primes become nonprimes and nonprimes become primes.
2
1, 5, 2, 2, 4, 1, 1, 1, 1, 2, 3, 3, 1, 1, 1, 2, 1, 1, 1, 1, 1, 4, 2, 3, 2, 1, 3, 4, 2, 1, 1, 2, 1, 2, 1, 1, 1, 3, 1, 2, 3, 7, 1, 1, 3, 4, 1, 1, 2, 1, 1, 2, 2, 1, 2, 1, 3, 12, 1, 3, 1, 2, 1, 4, 1, 5, 1, 1, 1, 2, 1, 7, 1, 1, 1, 2, 2, 1, 1, 3, 1, 2, 2, 5, 6, 1, 23, 4, 6, 1, 2, 3, 3, 2, 1, 1, 1, 1, 1, 10
OFFSET
1,2
COMMENTS
n>1: a(n) = A063377(n) + A040081(n+1).
CROSSREFS
Cf. A093009.
Sequence in context: A119320 A363252 A070962 * A297827 A198496 A318332
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Mar 14 2004
STATUS
approved