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 A274831 Strobogrammatic (A000787) composite numbers whose prime factors are strobogrammatic as well. 1
 1111, 11088011, 16169191, 101808101, 616101919, 668808899, 686808989, 1016969101, 1106699011, 1199006611, 6068888909, 6699116699, 6699886699, 11990006611, 16168089191, 19190006161, 19198086161, 66110001199, 66880008899, 110668899011, 161600009191 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The smallest term which is the product of 3 primes is 1111008888001111 = 11 * 101 * 1000008000001. The smallest term which is not a multiple of 11 or 101 is a(790) = 100111801888108111001 = 100111001 * 1000008000001. LINKS Giovanni Resta, Table of n, a(n) for n = 1..1000 EXAMPLE 16169191 is a term because it is equal to 101 * 160091. CROSSREFS Cf. A000787, A007597. Sequence in context: A275944 A291945 A015292 * A154805 A203897 A236050 Adjacent sequences:  A274828 A274829 A274830 * A274832 A274833 A274834 KEYWORD nonn,base AUTHOR G. L. Honaker, Jr. and Giovanni Resta, Jul 08 2016 STATUS approved

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Last modified January 18 23:05 EST 2019. Contains 319282 sequences. (Running on oeis4.)