56417

Properties

Appears in sequences

• Pentanacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) + a(n-4) + a(n-5) with a(0) = a(1) = a(2) = a(3) = a(4) = 1.at n=19A000322
• Primes of the form k^2 + k + 55661, with k >= 0.at n=21A116206
• Number of permutations of length n which avoid the patterns 1234, 1342, 2431.at n=10A116752
• Primes in the pentanacci numbers sequence A000322.at n=4A248921
• Number of nX5 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=7A300602
• Prime numbersat n=5719