22591

Appears in sequences

• H_n(-1/2), where H_n(x) is Hermite polynomial of degree n.at n=10A000321
• Strong pseudoprimes to base 86.at n=10A020312
• Let R(i,j) be the rectangle with antidiagonals 1; 2,3; 4,5,6; ...; each k is an R(i(k),j(k)) and A057046(n)=i(2^n).at n=28A057046
• Numbers k such that 5*phi(k) = 4*sigma(k).at n=2A065822
• Number of 3 X 3 X 3 magic cubes with sum 3n.at n=9A070302
• Triangle of coefficients of polynomials v(n,x) jointly generated with A210747; see the Formula section.at n=41A210748
• Govindarajan's triangle beta arising in enumeration of multi-dimensional partitions, read by rows.at n=26A216808
• Expansion of e.g.f.: exp(x * (1 - x)).at n=10A293604
• Square array A(n,k), n >= 0, k >= 1, read by antidiagonals downwards, where column k is the expansion of e.g.f. exp(-Sum_{j=1..k} x^j).at n=76A334561
• Starts of runs of 3 consecutive numbers with the same total binary weight of their divisors (A093653).at n=15A338453