1,1

Next term is (probably) 40 followed by 483 3's, followed by 4133, 433, 443, 463, 4733, 4933, 503, 523, 5333, 55333, 563, 58333333, 593, 613, 6233333, 643, 653, 673, 683, 7033333, 71333, 733, 743, 76333, 773, 7933, 803333, 823, 83333333, 853, 863, 883, 8933, 9133, 92333, 9433, 953, 9733, 983, ... - Lambert Herrgesell (zero815(AT)googlemail.com), Dec 09 2005

1333333333333333 is a prime but 133,1333,13333 etc. are not primes.

Cf. A112386.

Sequence in context: A135283 A119488 A165350 this_sequence A067227 A068712 A103166

Adjacent sequences: A112391 A112392 A112393 this_sequence A112395 A112396 A112397

nonn,base

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Dec 05 2005

More terms from Lambert Herrgesell (zero815(AT)googlemail.com), Dec 09 2005