31134

Appears in sequences

• Half-indexed Lucas numbers a(n)=round(sqrt((1+sqrt(5))/2)^n) a(2n)=L(n)=A000032, so a(n)=L(n/2).at n=42A127207
• a(n) is the smallest integer k such that the n-th (backward) difference of the partition sequence A000041 is positive from k onwards.at n=40A155861
• Sum of the squares of the larger parts of the partitions of 2n into two squarefree parts.at n=29A280322
• a(n) = prime(n) + prime(n+1) * prime(n+2).at n=38A293206
• A digitized pure tuning tone, sampled at standard settings for consumer audio: a(n) = floor(sin(2*Pi*(440/44100)*n)*32767).at n=20A320277
• Number of non-isomorphic multiset partitions of weight n in which the part sizes are relatively prime.at n=10A321283
• Arises from the enumeration of cycle-alternating permutations.at n=8A362109