434700

Appears in sequences

• Denominator in Feinler's formula for unsigned Bernoulli number |B_{2n}|.at n=34A002444
• a(n) is the number of sets of natural numbers [a,b,c,d,e] that can be produced with the numbers [0..n] such that the values of all the distinct parenthesized expressions of a-b-c-d-e are different.at n=14A054026
• Number of primitive (aperiodic) step shifted (decimated) sequences using a maximum of six different symbols.at n=7A056385
• a(n) = n*(n-1)*(n-3)*(n-5).at n=28A062765
• a(n) = (2^(n-1)/(2n)!)*Product_{k=1..n} q(k) where q(n) is the denominator of B(2n), the 2n-th Bernoulli number.at n=21A069267
• Bell(2n)*(2n-1)!!, where Bell are the Bell numbers A000110.at n=4A100101
• Denominators of a-sequence for Sheffer matrix A130191 (Stirling2 squared).at n=44A130409
• Numbers with prime factorization pqr^2s^2t^3.at n=29A190386
• a(n) = 15120*(2*n)!/(n!*(n + 5)!); super ballot numbers, row 4 of A135573.at n=14A348898