1544400

Appears in sequences

• Number of one-sided prudent walks from (0,0) to (n,n), with 3+n east steps, 3 west steps and n north steps.at n=7A189769
• Number of endofunctions on [2n] such that the minimal cardinality of the nonempty preimages equals n.at n=8A273325
• a(n) = 972*n^2 - 270*n (n>=1).at n=39A305071
• Denominators of the partial sums of the reciprocals of Pillai's arithmetical function (A018804).at n=17A379364