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0,2
Map a binary sequence b=[ b_1,... ] to a binary sequence c=[ c_1,... ] so that C=1/Product((1-x^i)^c_i == 1+Sum b_i*x^i mod 2.
This produces 2 new sequences: d={i:c_i=1} and e=[ 1,e_1,... ] where C=1+Sum e_i*x^i.
Table of n, a(n) for n=0..37.
Sequence in context: A154885 A292192 A295150 * A128217 A288671 A284906
Adjacent sequences: A042953 A042954 A042955 * A042957 A042958 A042959
nonn
N. J. A. Sloane and J. H. Conway
approved