

A175330


a(n) = the decimal equivalent of (the binary representation of prime(n)) AND (the binary representation of prime(n+1)).


3



2, 1, 5, 3, 9, 1, 17, 19, 21, 29, 5, 33, 41, 43, 37, 49, 57, 1, 67, 65, 73, 67, 81, 65, 97, 101, 99, 105, 97, 113, 3, 129, 137, 129, 149, 149, 129, 163, 165, 161, 177, 181, 129, 193, 197, 195, 211, 195, 225, 225, 233, 225, 241, 1, 257, 261, 269, 261, 273, 281
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OFFSET

1,1


COMMENTS

Read each binary representation of the primes from right to left and then AND respective digits to form the binary equivalent of each term of this sequence.
Indices of 1's: 2, 6, 18, 54, 564, 3512, 6542, 564163, 2063689, 54400028, ...  Alex Ratushnyak, Apr 22 2012


LINKS

Table of n, a(n) for n=1..60.


MAPLE

read("transforms") ; A175330 := proc(n) ANDnos(ithprime(n), ithprime(n+1)) ; end proc: seq(A175330(n), n=1..60) ; # R. J. Mathar, Apr 15 2010


CROSSREFS

Sequence in context: A026205 A082748 A327691 * A085261 A179218 A131119
Adjacent sequences: A175327 A175328 A175329 * A175331 A175332 A175333


KEYWORD

base,nonn


AUTHOR

Leroy Quet, Apr 07 2010


EXTENSIONS

More terms from R. J. Mathar, Apr 15 2010


STATUS

approved



