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A322777 Scan first k digits of Pi starting with 3, for k = 1,2,3,..., record all distinct numbers in the order in which they appear. 2

%I #15 Jan 04 2019 10:54:38

%S 3,31,1,314,14,4,3141,141,41,31415,1415,415,15,5,314159,14159,4159,

%T 159,59,9,3141592,141592,41592,1592,592,92,2,31415926,1415926,415926,

%U 15926,5926,926,26,6,314159265,14159265,4159265,159265,59265,9265,265,65,3141592653

%N Scan first k digits of Pi starting with 3, for k = 1,2,3,..., record all distinct numbers in the order in which they appear.

%C Skip any "numbers" that begin with 0, except 0 itself.

%C Presumably this is a permutation of the nonnegative numbers.

%C All the terms of A011545 appear in order in this sequence. - _Rémy Sigrist_, Jan 03 2019

%H Rémy Sigrist, <a href="/A322777/b322777.txt">Table of n, a(n) for n = 1..10000</a>

%o (PARI) pid=Pi; s=Set(); for (k=1, 10, my (f=floor(pid)); forstep (w=k, 1, -1, v=f % (10^w); if (!setsearch(s, v), print1 (v ", "); s=setunion(s,Se

%o t(v)))); pid*=10) \\ _Rémy Sigrist_, Jan 03 2019

%Y Inspired by A323036.

%Y Cf. A011545, A322776, A154883.

%K nonn,base

%O 1,1

%A _N. J. A. Sloane_, Jan 03 2019

%E More terms from _Rémy Sigrist_, Jan 03 2019

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Last modified March 28 07:33 EDT 2024. Contains 371235 sequences. (Running on oeis4.)