39390

Appears in sequences

• Array read by antidiagonals: generalized ordered Bell numbers Bo(r,n).at n=39A094416
• Generalized ordered Bell numbers Bo(6,n).at n=4A094419
• Expansion of (1+5x+sqrt(1+2x+9x^2))/(2(1+2x)).at n=17A186195
• Record (maximal) gaps between prime triples (p, p+2, p+6).at n=38A201598
• Matula-Goebel numbers of transitive rooted identity trees (or transitive finitary sets).at n=23A290760
• Number of nX3 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=6A301349
• Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=2A301353
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=38A301354
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=42A301354
• T(n, k) = F(n - k, k), where F(n, x) is the Fubini polynomial. Triangle read by rows, T(n, k) for 0 <= k <= n.at n=61A344499
• Starts of runs of 4 consecutive integers that are Jacobsthal-Niven numbers (A364216).at n=8A364219
• Number of (curved) edges formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius.at n=25A371255