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A090422 Primes that cannot be written in binary representation as concatenation of other primes. 3
2, 3, 5, 7, 13, 17, 19, 37, 41, 53, 67, 73, 89, 97, 101, 103, 107, 131, 137, 139, 149, 163, 193, 197, 199, 211, 227, 257, 263, 269, 277, 281, 293, 307, 311, 313, 331, 337, 389, 397, 401, 409, 419, 421, 443, 449, 461, 521, 523, 547, 557, 569, 571, 577, 587 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

A090418(a(n)) = 1; subsequence of A090421.

CROSSREFS

Cf. A090423, A000040, A004676, A007088.

Sequence in context: A152961 A109461 A138539 * A005109 A179336 A080608

Adjacent sequences:  A090419 A090420 A090421 * A090423 A090424 A090425

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 30 2003

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.