120240

Appears in sequences

• Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 19 (most significant digit on right).at n=36A029512
• 7th binomial transform of the periodic sequence (1,8,1,1,8,1...).at n=5A081034
• Number of length 1+4 0..n arrays with no disjoint pairs in any consecutive five terms having the same sum.at n=10A247405
• Number of (n+2) X (5+2) 0..1 arrays with every 2 X 2 and 3 X 3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically.at n=14A253507
• a(n) = Sum_{k=0..floor(n/2)} binomial(k+2,2) * binomial(k,2*(n-2*k)).at n=28A392252