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%I #12 Mar 16 2022 20:13:38
%S 90,992,792990,4992990,199699292,919999892,29939899992,939969999920,
%T 99179499990990,999690999669990,129990929999959950,299899968999993990,
%U 10999489909979999990,299929969229995999992,12999999959999499709890,126994909999399899999990,9399899999156999909995992
%N Smallest oblong (promic) number containing exactly n 9's.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PronicNumber.html">Pronic Number</a>
%Y Cf. A048547, A002378.
%Y Cf. A048530, A048532, A048534, A048536, A048538, A048540, A048542, A048544, A048546.
%K nonn,base
%O 1,1
%A _Patrick De Geest_, May 15 1999
%E a(13)-a(17) from _Giovanni Resta_, Oct 09 2019
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