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A055992 n written efficiently in natural numbers base, i.e., in form ...wxyz where n  =1*z + 2*y + 3*x + 4*w + ... with z < 1, y < 2, x < 3, w < 4, ... 1

%I

%S 10,100,1000,110,200,1100,210,1110,1200,2100,1210,2110,2200,3100,2210,

%T 3110,3200,12200,3210,12210,13110,13200,22200,13210,22210,23110,23200,

%U 32200,23210,32210,33110,33200,42200,33210,42210,43110,43200,133200

%N n written efficiently in natural numbers base, i.e., in form ...wxyz where n =1*z + 2*y + 3*x + 4*w + ... with z < 1, y < 2, x < 3, w < 4, ...

%H <a href="/index/Fi#final">Index entries for sequences related to final digits of numbers</a>

%e a(9)=1110 since 9 = 4*1 + 3*1 + 2*1 + 1*0 and alternatives such as 100000000 or 11000 are less efficient (while 211 is prohibited because the final digit is too big).

%Y Cf. A055611 for a slightly different definition.

%K base,nonn

%O 2,1

%A _Henry Bottomley_, Jun 02 2000

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Last modified December 6 03:33 EST 2021. Contains 349562 sequences. (Running on oeis4.)