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A177363 a(n) contains the nonzero frequencies f(d) of digits d=0 .. 9 in all terms up to a(n-1) in concatenated form sorted with respect to d: f(0)//0//f(1)//1//...//f(9)//9. Initial term a(1)=4. 3

%I

%S 4,14,1124,311234,51222344,6152336415,816253743526,9182738455461718,

%T 12192831047556374819,101611121031249566576839,

%U 30231132123134115106677859,50301162173144135126878869

%N a(n) contains the nonzero frequencies f(d) of digits d=0 .. 9 in all terms up to a(n-1) in concatenated form sorted with respect to d: f(0)//0//f(1)//1//...//f(9)//9. Initial term a(1)=4.

%C For a Mathematica program, see A177360 (you have to slightly modify it) [From Jasper Mulder (jasper.mulder(AT)planet.nl), Jun 04 2010]

%H J. Mulder, <a href="/A177363/b177363.txt">Table of n, a(n) for n = 1..25000</a>

%e Four; one four; one one, two fours; three ones, one two, three fours; five ones, two twos, two threes, four fours; six ones, five twos, three threes, six fours, one five; etc.

%Y Cf. A060857, A177359 - A177368.

%K easy,nonn,base

%O 1,1

%A _Paolo P. Lava_ and _Giorgio Balzarotti_, May 10 2010

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Last modified August 7 12:13 EDT 2020. Contains 336276 sequences. (Running on oeis4.)