24801

Appears in sequences

• a(2*n+1) = 7*a(n), a(2*n+2) = 8*a(n) + a(n-1).at n=37A116554
• a(n) = 62*n^2 + 1.at n=20A158676
• Expansion of g.f. (1-2*x+51*x^2)/(1-x)^3.at n=32A257352
• Number of integers in n-th generation of tree T(-1/2) defined in Comments.at n=26A274147
• Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.at n=2A297761
• T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.at n=38A297762
• Number of 3 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1's.at n=6A297764
• Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.at n=7A298659
• Expansion of Sum_{k>0} x^k/(1 - k*x^k)^4.at n=24A363645