26926

Appears in sequences

• a(n) = 2*a(n-1) - a(n-2) + a(n-3) + 2^(n-1).at n=13A000253
• Numbers k such that 225*2^k+1 is prime.at n=41A032489
• Indices of primes in sequence defined by A(0) = 13, A(n) = 10*A(n-1) - 27 for n > 0.at n=20A102006
• Row 4 of table A162430.at n=27A162433
• Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.at n=5A298385
• Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.at n=3A298387
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.at n=39A298389
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.at n=41A298389
• Number of subsets of the first n positive cubes whose sum is a positive cube.at n=25A378171