628125
domain: N
Appears in sequences
- G.f. satisfies: A(x) = x + 4*x^2 + x*A(A(A(A(A(x))))).at n=5A215118
- Numbers that divide the concatenation of their aliquot divisors, in ascending order.at n=21A240265
- Number of nX4 0..1 arrays with every element unequal to 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=16A304259