1359872

Appears in sequences

• Number of subsets of {1,.., n} containing at least one twin prime pair.at n=20A089828
• The hyper-Wiener index of the Cartesian product of the cycles C(n) and C(n) (a Torus Grid Graph).at n=15A228316
• Numbers n such that A048720(n, A065621(n)) is a perfect square, but n is not in A023758.at n=41A277807
• Total number of ones in runs of 1's of length >= 4 over all binary strings of length n.at n=19A386250