28121

Appears in sequences

• Numerators of continued fraction convergents to sqrt(692).at n=7A042330
• Positive numbers y such that y^2 is of the form x^2+(x+89)^2 with integer x.at n=11A160055
• Centered 40-gonal numbers.at n=37A195317
• Hypotenuses of primitive Pythagorean triples in A195532 and A195533.at n=5A195534
• Number of different figures obtained by a putting two Young diagrams of partitions lambda and mu, such that |lambda| + |mu| = n on top of each other.at n=30A225751
• Number of length 3 1..(n+2) arrays with no leading partial sum equal to a prime and no consecutive values equal.at n=39A255718
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 521", based on the 5-celled von Neumann neighborhood.at n=31A272736
• Odd composite integers m such that A000032(3*m-J(m,5)) == 3*J(m,5) (mod m), where J(m,5) is the Jacobi symbol.at n=31A339724