83072

Appears in sequences

• Smallest k such that k and k+n have the same prime signature that is different from all previous terms.at n=33A085876
• First column and main diagonal of triangle A092686, in which the convolution of each row with {1,2} produces a triangle that, when flattened, equals the flattened form of A092686.at n=11A092687
• Number of n-faced simplicial decompositions on a cylinder.at n=4A169895
• E.g.f.: Sum_{n>=0} 2^(n^2) * (1+x)^(2^n) * x^n / n!.at n=4A326084