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A105990 Near-repdigit semiprimes with 9 as repeated digit. 0
299, 699, 799, 899, 939, 949, 959, 979, 989, 993, 995, 998, 5999, 6999, 7999, 9299, 9599, 9799, 9899, 9939, 9959, 9969, 9979, 9989, 9991, 9993, 9995, 9997, 9998, 19999, 29999, 69999, 91999, 92999, 93999, 95999, 99299, 99599, 99899, 99919, 99949 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

EXAMPLE

a(2)=699 is a term because 699 is a semiprime and all digits are equal to 9 except one.

CROSSREFS

Sequence in context: A245956 A235229 A064908 * A160484 A271986 A091028

Adjacent sequences:  A105987 A105988 A105989 * A105991 A105992 A105993

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta, Apr 29 2005

STATUS

approved

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Last modified October 17 21:37 EDT 2019. Contains 328134 sequences. (Running on oeis4.)