280158

Appears in sequences

• Sums of 3 distinct powers of 6.at n=39A038479
• Numbers k such that the sum of the prime distinct divisors of k^2+1 equals 2 times the largest prime divisor of k^2+1.at n=17A200072
• Number T(n,k) of isoscent sequences of length n with exactly k ascents; triangle T(n,k), n>=0, 0<=k<=n+3-ceiling(2*sqrt(n+2)), read by rows.at n=42A242351
• Number of isoscent sequences of length n with exactly three ascents.at n=5A243229