38137

Appears in sequences

• Expansion of e.g.f.: tan(x)*exp(sinh(x)).at n=9A009736
• Expansion of tanh(x)*cos(sin(x)).at n=4A009825
• Denominators of continued fraction convergents to sqrt(762).at n=13A042469
• Numbers k such that sum of divisors of k is a square and a triangular number (A000217). That is, numbers k such that A000203(k) is in A001110.at n=11A232847
• Number of (n+2) X (3+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7.at n=18A252379
• Number of (n+1) X (6+1) 0..1 arrays with every 2 X 2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically.at n=19A253395
• a(n) = number of triangles with integer sides i <= j <= k with radius of circumcircle <= n.at n=40A331229
• Starts of runs of 3 consecutive numbers with the same total binary weight of their divisors (A093653).at n=21A338453