A105986 Near-repdigit semiprimes with 5 as repeated digit.

155, 355, 505, 515, 535, 545, 551, 553, 554, 559, 565, 655, 755, 955, 1555, 4555, 5155, 5255, 5455, 5515, 5545, 5554, 5585, 5755, 5855, 7555, 50555, 53555, 55355, 55551, 55553, 55558, 55559, 55565, 55585, 55595, 55655, 55855, 56555, 505555, 545555

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Example

a(2)=355 is a term because 355 is a semiprime and all digits are equal to 5 except one.

Crossrefs

Sequence in context: A112136 A119609 A063340 * A259957 A129640 A028382

Adjacent sequences: A105983 A105984 A105985 * A105987 A105988 A105989

Keyword

base,nonn

Author

Shyam Sunder Gupta, Apr 29 2005

Status

approved