A112583 - OEIS

A112583

Lengths of the loop of the sequences "Sum of last n digits" beginning with (n-1) zeros followed by digit 4.

%I #6 May 08 2026 19:39:12

%S 1,8,4,50,171,39,461,78,12203,312,318880,2184,57725,5804,1401,3251,

%T 4678,10180,18248,2255,33936,17379,228810,191744,418737,477214,210178,

%U 116754,827058,1419710,2100776,1328500,2481139,3540942,3227711,3501401,5362628,15949331,17333522

%N Lengths of the loop of the sequences "Sum of last n digits" beginning with (n-1) zeros followed by digit 4.

%e a(5)=171 because the sum of last five *digits* of the sequence beginning with 0,0,0,0,4, (four zeros followed by a 4) enters in a loop whose length is 171 terms; so a(5)=171

%e a(6)=39 because "Sum of last six digits" beginning with 0,0,0,0,0,4 enters in a cycle of 39 terms.

%e Computed by Michael D Beeler.

%Y Cf. A112395.

%K base,easy,nonn

%O 1,2

%A _Alexandre Wajnberg_, Dec 17 2005

%E More terms from _Bert Dobbelaere_, May 08 2026