58301

Appears in sequences

• Fibonacci sequence beginning 1, 8.at n=20A022098
• a(n) = (H(n) - 1)*lcm{1,...,n}, where H(n) is the n-th harmonic number.at n=11A027457
• Numerator of 1/n + 2/(n-1) + 3/(n-2) + ... + (n-1)/2 + n.at n=10A027612
• a(n) = 3*a(n-1) - a(n-2) with a(0)=1, a(1)=9.at n=10A055849
• Numerator - denominator in n-th harmonic number, 1 + 1/2 + 1/3 + ... + 1/n.at n=11A064169
• Erroneous version of A027612.at n=10A081525
• Numerator of the Harary number for the path graph P_n.at n=11A160048
• Number of 1X5 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2*n^2 (number of collections of 1 zero-sum 5-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=29A192692
• Number of nX7 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,1) or (-1,0) and new values introduced in order 0..2.at n=2A275227
• T(n,k)=Number of nXk 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,1) or (-1,0) and new values introduced in order 0..2.at n=38A275228
• Number of 3 X n 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,1) or (-1,0) and new values introduced in order 0..2.at n=6A275229
• Numerator of sum of reciprocals of numbers less than n that do not divide n.at n=12A281085
• Number of partitions of n such that each part is no more than 3 more than the sum of all smaller parts.at n=43A286929