42698

Appears in sequences

• E-trees with at most 2 colors.at n=9A007141
• Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026648.at n=21A026658
• Number of partitions satisfying cn(2,5) <= cn(0,5) + cn(1,5) + cn(4,5) and cn(3,5) <= cn(0,5) + cn(1,5) + cn(4,5).at n=41A039871
• Number of binary strings of length n with equal numbers of 0010 and 1010 substrings.at n=17A164170
• Numbers n such that phi(n) = phi(n+7), with Euler's totient function phi = A000010.at n=27A179189