19214

Appears in sequences

• a(n) = Sum_{k=0..n-2} T(n,k) * T(n,k+2), with T given by A008288.at n=5A026935
• Denominators of continued fraction convergents to sqrt(601).at n=10A042153
• Expansion of (5 - 9*x + 6*x^2)/(1-x)^4.at n=38A080957
• Even elements of A085493.at n=39A106431
• Number of ordered quadruples (i,j,k,l) in range [0..n] satisfying i == j (mod 2), j == k (mod 3) and k == l (mod 4).at n=25A115523
• Sum of the odd parts in all partitions of n into distinct parts.at n=39A116682
• a(n) = Sum_{k=1..n} k*k', where n' is the arithmetic derivative of n.at n=42A190117
• Potential magic constants of a 10 X 10 magic square composed of consecutive primes.at n=26A192087
• Number of partitions of n in which any two parts differ by at most 7.at n=45A218509
• Number of nX3 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.at n=6A295347
• Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.at n=2A295351
• T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.at n=38A295352
• T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.at n=42A295352
• Sum of the smallest parts in the partitions of n into 7 parts.at n=52A308927
• a(n) = A324542(A002110(n)).at n=8A324536
• Smallest b > 1 such that b^(p-1) == 1 (mod p^4) for p = prime(n).at n=8A353937
• Numbers k whose binary expansion contains 2 adjacent 1's and A391571(k) = k.at n=40A391581