A105981 - OEIS

A105981

Near-repdigit primes with 3 as repeated digit.

233, 313, 331, 337, 353, 373, 383, 433, 733, 2333, 3313, 3323, 3331, 3343, 3373, 3433, 3533, 3733, 3833, 5333, 7333, 23333, 31333, 33331, 33343, 33353, 33533, 38333, 313333, 323333, 331333, 333233, 333323, 333331, 333337, 333383, 333433, 333533

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OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

EXAMPLE

a(2)=313 is a term because all digits are equal to 3 except one.

MATHEMATICA

Table[Sort[Select[FromDigits/@Flatten[Permutations/@Table[PadRight[ {n}, i, 3], {n, {1, 2, 4, 5, 7, 8}}], 1], PrimeQ]], {i, 3, 6}]//Flatten (* Harvey P. Dale, May 17 2017 *)

CROSSREFS

Sequence in context: A127340 A140033 A142182 * A160574 A087862 A141280

Adjacent sequences: A105978 A105979 A105980 * A105982 A105983 A105984

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta, Apr 29 2005

STATUS

approved