19448

Appears in sequences

• a(n) = binomial coefficient C(n,7).at n=10A000580
• a(n) = binomial coefficient C(n,10).at n=7A001287
• a(n) = (9*n+1)*(9*n+8).at n=15A001534
• Binomial coefficient C(2n+1, n-1).at n=7A002054
• Expansion of (1-x^11) / (1-x)^11.at n=7A008493
• 9-dimensional centered tetrahedral numbers.at n=7A008503
• Binomial coefficient C(17,n).at n=7A010933
• Binomial coefficient C(17,n).at n=10A010933
• Triangular array formed from even elements to right of middle of rows of Pascal's triangle.at n=32A014476
• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (composite numbers), t = (primes).at n=30A024604
• Binomial coefficients: C(n,k), 5 <= k <= n-5, sorted.at n=40A024749
• Binomial coefficients: C(n,k), 6 <= k <= n-6, sorted.at n=19A024750
• Binomial coefficients: C(n,k), 6 <= k <= n-6, sorted.at n=20A024750
• Binomial coefficients: C(n,k), 7 <= k <= n-7, sorted.at n=7A024751
• Binomial coefficients: C(n,k), 7 <= k <= n-7, sorted.at n=6A024751
• Binomial coefficients: C(n,k), 4 <= k <= n-4, sorted, duplicates removed.at n=41A024756
• Binomial coefficients: C(n,k), 5 <= k <= n-5, sorted, duplicates removed.at n=21A024757
• Binomial coefficients: C(n,k), 6 <= k <= n-6, sorted, duplicates removed.at n=11A024758
• Binomial coefficients: C(n,k), 7 <= k <= n-7, sorted, duplicates removed.at n=4A024759
• Numbers k such that 163*2^k+1 is prime.at n=39A032458