145152

Appears in sequences

• a(n) = A002034(n)!/n.at n=24A007672
• Expansion of e.g.f.: sech(tan(x)*log(x+1))=1-12/4!*x^4+60/5!*x^5-570/6!*x^6+3780/7!*x^7...at n=9A012360
• Product of digits of A034686(n).at n=6A034725
• Number of k's such that A002034(k) = n.at n=26A038024
• Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*9^j.at n=38A038215
• a(n) = A056622(n!).at n=17A056627
• a(n) = A056622(n!).at n=18A056627
• Sixth column of triangle A067410.at n=5A067413
• Denominator of coefficients of power series for exp(exp(x)-1).at n=10A076904
• Numbers with incrementally smallest ratio A002034(n)/n.at n=53A094371
• a(n) = rightmost term of M^n * [1 0 0], with M = the 3 X 3 matrix [1 -1 0 / -1 3 -2 / 0 -2 2].at n=8A094434
• Triangle where a(m,n) = largest divisor of m! coprime to n.at n=49A097905
• Numbers of the form (7^i)*(12^j), with i, j >= 0.at n=20A108238
• Denominators of the limit of coefficients of q in { [x^n] W(x,q) } when read backward from [q^(n*(n-1)/2)] to [q^(n*(n-1)/2 - (n-1))], where W satisfies: W(x,q) = exp( q*x*W(q*x,q) ).at n=47A126342
• Denominator of (Sum_{k=1..n} k^3)/n!.at n=10A156034
• Denominator of Laguerre(n, 5).at n=10A160630
• The number of bijections f:{1,...,n}->Z/nZ such that f(ab)=f(a)+f(b) whenever all three function values are defined.at n=34A179989
• Logarithms (cf. A179989) f:{1,...,n}->Z/nZ such that either (i) n is odd or (ii) n is even and f(m) is even whenever m divides n/2.at n=34A179990
• Denominators of coefficients in Taylor series expansion of arcsin(cosec(x)-cotanh(x)).at n=2A202381
• a(n) = (5n)!/5^n.at n=2A210278