24101

Appears in sequences

• Expansion of series related to Liouville's Last Theorem: g.f. sum_{t>0} (-1)^(t+1) *x^(t*(t+1)/2) / ( (1-x^t)^8 *product_{i=1..t} (1-x^i) ).at n=10A059825
• 2*3*5*6*...*a(n) -+ 1 are primes, with a(n+1) > a(n).at n=46A087900
• Triangle read by rows: T(m,n) is the Szeged index of the grid graph P_m X P_n (1 <= n <= m).at n=26A245826
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f. exp(x/(1 - x)^k).at n=60A293012
• a(n) = n! * [x^n] exp(x/(1 - x)^n).at n=5A293013
• Number of labeled n-vertex 2-edge multigraphs that are neither crossing nor nesting.at n=22A326247
• E.g.f. satisfies A(x) = exp( x * A(x) / (1-x) ) / (1-x).at n=5A377595