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A102830 "True already", base 4, start 1: a(n) is the least integer such that the sequence up to a(n-1) written in base 4 contains floor(a(n)/4) copies of the digit a(n) % 4, with a(0) = 1. 7

%I #8 May 26 2017 16:42:08

%S 1,2,3,5,6,7,10,11,15,21,22,23,26,27,31,38,39,43,47,55,62,66,70,71,74,

%T 75,79,86,87,90,91,95,102,103,107,111,119,126,130,135,139,143,151,155,

%U 159,167,171,175,183,191,203,210,214,218,223,226,234,237,241,245,250

%N "True already", base 4, start 1: a(n) is the least integer such that the sequence up to a(n-1) written in base 4 contains floor(a(n)/4) copies of the digit a(n) % 4, with a(0) = 1.

%D Inspired by discussion of "True so far" from _Eric Angelini_ (A102357).

%Y Cf. A102823-A102829, A102357.

%K nonn,easy,base

%O 0,2

%A _Hugo van der Sanden_, Feb 26 2005

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Last modified April 16 01:40 EDT 2024. Contains 371696 sequences. (Running on oeis4.)