134550

Appears in sequences

• Expansion of e.g.f.: exp(cos(x)-exp(x))=1-x-1/2!*x^2+4/3!*x^3+5/4!*x^4-32/5!*x^5...at n=11A013468
• a(n) = 9*binomial(n,4) = 3*n*(n-1)*(n-2)*(n-3)/8.at n=26A060008
• Inverse of Riordan array (1/(1-x), x/(1-x)^3), A109955.at n=48A109956
• Number of permutations of 2 copies of 1..n with no element e[i>=2]<e[1+floor((i-2)/5)] (5-way heap).at n=5A178015
• Minimum value unattainable as the sum of 4 attained values of a*b*c with a,b,c 0..n integers.at n=33A225266
• a(n) = 10 * binomial(3*n+10,n)/(3*n+10).at n=6A233657