45384

Appears in sequences

• a(n) = (n+2)*(n+1)*(n^2 + 7*n - 12)/24.at n=29A014309
• a(0)=1. a(n) = a(n-1)*(n+1), if n is in the sequence. a(n)= a(n-1) +1, if n is missing from the sequence.at n=33A118471
• Regular coverings having dihedral voltage groups: see Kwak-Lee reference in A160870 for precise definition.at n=4A160880
• a(n) = ((2^b-1)/phi(n))*Sum_{d|n} Moebius(n/d)*d^(b-1) for b = 5.at n=10A160894
• Fixed points of permutations A275837 & A275838.at n=26A275839