28556

Appears in sequences

• G.f.: exp( Sum_{n>=1} 4^A001511(n) * x^n/n ), where 2^A001511(n) is the highest power of 2 that divides 2*n.at n=11A217553
• Number of new duplicate terms at a given iteration of the Collatz (or 3x+1) map starting with 0.at n=20A275545
• Number of nX3 0..1 arrays with every element unequal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.at n=9A306055
• Irregular triangle read by rows: T(n,k) is the number of chordless cycles of length k in the n-diagonal intersection graph, 4 <= k <= kmax.at n=64A371340