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A116055 Triangular numbers whose representation is made of nontrivial runs of identical digits. 0

%I

%S 55,66,666,2211,222111,339900,1188111,22221111,88000011,111221155,

%T 553330011,2200066611,2222211111,2233558866,55666666611,77771144466,

%U 222222111111,880022001111,888000000111,1111226666655,5533355001111

%N Triangular numbers whose representation is made of nontrivial runs of identical digits.

%C A run of length 1 is trivial.

%e T(14914) = 111221155.

%Y Cf. A033023.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 13 2006

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Last modified August 13 20:49 EDT 2022. Contains 356107 sequences. (Running on oeis4.)