0,4
Expansion of (1+x)(1+x^2)(1+x^3)...(1+x^19).
Sequence in context: A034146 A034147 A034148 this_sequence A034150 A034321 A058703
Adjacent sequences: A034146 A034147 A034148 this_sequence A034150 A034151 A034152
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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