1,1
For numbers of the form 10k, of the form 10k+5 with a zero some where and those using all 10 digits a(n) = 0. Are there numbers using 8 of the 9 nonzero digits for which a(n) is nonzero? aIf so what is the smallest such number?
Sequence in context: A069816 A088116 A100817 this_sequence A076309 A088133 A115299
Adjacent sequences: A074154 A074155 A074156 this_sequence A074158 A074159 A074160
base,nonn
Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 29 2002
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