846720

Appears in sequences

• Lah numbers: a(n) = n! * binomial(n-1, 3)/4!.at n=5A001755
• Expansion of Eisenstein series E_4(q) (alternate convention E_2(q)); theta series of E_8 lattice.at n=15A004009
• a(n) = n! * Fibonacci(n).at n=8A005443
• Base 10 digital convolution sequence.at n=12A033647
• Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*12^j.at n=18A038278
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*7^j.at n=17A038333
• A triangle related to A000045 (Fibonacci numbers).at n=37A039948
• Coefficients of the polynomials in the numerator of the generating function x/(1-x-x^2) for the Fibonacci sequence and its successive derivatives starting with the highest power of x.at n=40A078991
• Nonzero coefficients of the polynomials in the numerator of the generating function x/(1-x-x^2) for the Fibonacci sequence and its successive derivatives starting with the highest power of x.at n=32A078992
• Coefficients of the polynomials in the numerator of the generating function x/(1-x-x^2) for the Fibonacci sequence and its successive derivatives starting with the constant.at n=38A079461
• Nonzero coefficients of the polynomials in the numerator of the generating function x/(1-x-x^2) for the Fibonacci sequence and its successive derivatives starting with the constant.at n=31A079462
• Triangular array A066667 or A008297 unsigned and transposed.at n=41A089231
• a(n) = (n^2-1)*n!/3.at n=7A090672
• Table (by antidiagonals) of permutations of two types of objects such that each cycle contains at least one object of each type. Each type of object is labeled from its own label set.at n=38A091441
• Triangle read by rows: T(n,k) is the number of permutations p of [n] in which the length of the longest initial segment avoiding the 123-pattern is equal to k.at n=48A092583
• Smallest j associated with a(n) in A103277.at n=5A103278
• Triangle read by rows: T(n,k) = binomial(n,k)*(n-1)!/(k-1)!.at n=39A105278
• Least number with exactly n prime factors counted with multiplicity which gives a different number with exactly n prime factors counted with multiplicity when digits are reversed.at n=12A109018
• Number of different ways n! can be represented as the difference of two squares; also, for n >= 4, half the number of positive integer divisors of n!/4.at n=28A138196
• Elements n of A141586 with property that A100762(n) = n.at n=25A141758