0,2
If n = 11 then a(n) = 109 and a(n+1) = 110; "109" and "110" both show the substring "10" which is "(n-1)".
Sequence in context: A061870 A120001 A108703 this_sequence A022324 A084953 A087697
Adjacent sequences: A098782 A098783 A098784 this_sequence A098786 A098787 A098788
base,easy,nonn
Eric Angelini (eric.angelini(AT)kntv.be), Oct 04 2004
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