54738

Appears in sequences

• Numbers k such that the difference between k-th prime and next prime is 70.at n=15A116493
• a(n) = 169*n^2 - n.at n=17A157998
• a(n) = 676*n^2 - 2*n.at n=8A158392
• a(n) = 324*n^2 - 18.at n=12A158589
• Number of (n+1) X 2 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to two, and every 2 X 2 determinant nonzero.at n=6A205991
• Number of (n+1)X8 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero.at n=0A205997
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero.at n=21A205998
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero.at n=27A205998
• Numbers k such that phi(k-6) = phi(k) = phi(k+6).at n=39A217006
• Sum over all partitions of n of the number of distinct parts i of multiplicity i - 1.at n=47A277101
• Number of n X n 0..1 arrays with every element unequal to 0, 1 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=8A299589
• Numbers k such that the powerful part of the sum of divisors of k (A387726) is greater than or equal to k, and sigma(k) is not itself a powerful number.at n=39A387729