67131

Appears in sequences

• Number of 5-tuples of different integers from [ 1,n ] with no common factors among quadruples.at n=26A015644
• Number of unimodal partitions/compositions of n into distinct terms.at n=47A072706
• a(n) = Sum_{k=0..n} (2^k + Fibonacci(k)).at n=15A101353
• Number of nX2 0..1 arrays with every row and column least squares fitting to a nonnegative slope straight line, with a single point array taken as having zero slope.at n=10A222856