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A138975
Primes made up of only 3's and a 4 and at most two 2's.
2
23, 43, 223, 233, 433, 2333, 3323, 3343, 3433, 23333, 32233, 32323, 33223, 33343, 232333, 233323, 323233, 323333, 333233, 333323, 333433, 334333, 343333, 2332333, 2333323, 3223333, 3233323, 3233333, 3332233, 3333233, 3333433, 3433333
OFFSET
1,1
CROSSREFS
Sequence in context: A296563 A023264 A180534 * A168439 A332399 A198949
KEYWORD
nonn,base
AUTHOR
Lekraj Beedassy, Apr 05 2008
STATUS
approved