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A090422 Primes that cannot be written in binary representation as concatenation of other primes. +0
4
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; listen)
OFFSET

1,1

COMMENT

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

CROSSREFS

Cf. A090423, A000040, A004676, A007088.

Sequence in context: A109799 A109461 A138539 this_sequence A005109 A080608 A137812

Adjacent sequences: A090419 A090420 A090421 this_sequence A090423 A090424 A090425

KEYWORD

nonn,base

AUTHOR

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

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.


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