pyramidal numbers
Alternative form of blood bank
plural of pyramidal number
simple past tense and past participle of knock on heaven's door
A remedy to counteract the effects of poison. / (figuratively) Something that counteracts or prevents something harmful.
多くの数学者は、ピラミッド状の数が図形数論や三次元の充填問題とどのように関係しているかを研究しています。
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