19138

Appears in sequences

• Number of partitions of floor(7n/2) into n nonnegative integers each no more than 7.at n=20A001979
• Number of benzenoids with 22 hexagons, C_(2v) symmetry and containing n carbon atoms.at n=17A123106
• Numbers k such that A(k+1) = A(k) + 1, where A() = A005101() are the abundant numbers.at n=17A169822
• Number of 5-step E, S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=11A187588
• Number of strictly increasing arrangements of n numbers in -(n+6)..(n+6) with sum zero.at n=6A188180
• Number of strictly increasing arrangements of 7 numbers in -(n+5)..(n+5) with sum zero.at n=7A188185
• Number of nondecreasing arrangements of n numbers in -(n+3)..(n+3) with sum zero.at n=6A188207
• Number of nX7 0..1 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=19A201502
• Number of (n+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally, with no adjacent elements equal.at n=3A232507
• Number of (n+1)X(4+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally, with no adjacent elements equal.at n=3A232511
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally, with no adjacent elements equal.at n=24A232515
• Number of (4+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally, with no adjacent elements equal.at n=3A232519
• Number of aperiodic necklaces (Lyndon words) with k<=8 black beads and n-k white beads.at n=21A277633
• Number of zeroless strictly pandigital numbers divisible by the n-th prime.at n=7A339498
• a(n) = Sum_{k=0..floor(n/2)} binomial(n-1-k,k) * binomial(2*n-4*k,n-2*k).at n=8A360290