127736

Appears in sequences

• Gaps of 2 in sequence A038593 (lower terms).at n=36A038643
• Least number 2k such that p^2 divides the numerator of the Bernoulli number B(2k), where p is the n-th irregular prime, A000928(n).at n=32A092681
• Floor(-1/n + 1/log((2n+1)/(2n-1))).at n=21A227512
• Round(-1/n + 1/log((2n+1)/(2n-1))).at n=21A227513
• Number of numbers in row n of the array at A243925.at n=33A243927
• Triangular array read by rows. T(n,k) is the number of sets of lists (as in A000262(n)) with exactly k size 2 lists, n >= 0, 0 <= k <= floor(n/2).at n=21A351823