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A105985 Near-repdigit semiprimes with 4 as repeated digit. 0
445, 446, 447, 454, 4414, 4442, 4443, 4449, 4474, 44441, 44494, 444441, 444494, 4444441, 4444449, 44444441, 44444446, 44444447, 444444449, 444444454, 4444444441, 4444444443, 44444444443, 44444444446, 44444444449, 444444444447 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..26.

EXAMPLE

a(2)=446 is a term because 446 is a semiprime and all digits are equal to 4 except one.

CROSSREFS

Sequence in context: A098255 A028460 A292139 * A160583 A025354 A025346

Adjacent sequences:  A105982 A105983 A105984 * A105986 A105987 A105988

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta, Apr 29 2005

STATUS

approved

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Last modified November 15 11:18 EST 2019. Contains 329144 sequences. (Running on oeis4.)