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A294852
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Number of compositions (ordered partitions) of 1 into exactly 4*n+1 powers of 1/5.
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2
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1, 1, 126, 90376, 216456376, 1303699790001, 16596702491586251, 396695587555058190126, 16336038155342083651640376, 1085776473843765315524916060126, 110656003660578876500875377620844376, 16592064238583710535773294961607940956876
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OFFSET
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0,3
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LINKS
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FORMULA
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a(n) = [x^(5^n)] (Sum_{j=0..4*n+1} x^(5^j))^(4*n+1).
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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