79743

Appears in sequences

• Number of acyclic quaternary ammonium ions with n carbon atoms.at n=13A000633
• Number of ordered quadruples of integers from [ 1,n ] with no common factors between triples.at n=40A015635
• Duplicate of A000633.at n=18A036669
• Number of (n+2)X3 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=4A185469
• Number of (n+2)X7 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=0A185473
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=10A185477
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=14A185477