39672

Appears in sequences

• Integer part of log(n!)^(1 + log(1 + log(1 + n))).at n=29A062445
• Periodicity of the reciprocal of the Mersenne numbers (A001348).at n=9A100491
• a(0) = 0; for n>0, a(n) = period length of the decimal expansion of the number Sum_{i>=1} 2^(-n*i). Also period length of the fractions 1/b(n), where b(n) = 2*b(n-1) + 1, with b(1)=1.at n=28A136273
• Number of nondecreasing integer sequences of length 9 with sum zero and sum of absolute values 2n.at n=19A158143
• Number of 3 X 3 semimagic squares with distinct positive values and magic sum n.at n=18A173547
• Number of nX5 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 nX5 array.at n=8A219701
• Number of (n+1) X (5+1) 0..1 arrays with every 2 X 2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically.at n=27A253394
• Sum T(n,k) of the k-th entries in all cycles of all permutations of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=22A285793
• Sum of the second entries in all cycles of all permutations of [n].at n=7A285795
• Number of ways to write n as an ordered sum of ten powers of 2.at n=20A342254
• a(n) = psi(2^n-1), where psi = A002322.at n=28A387107