89918

Appears in sequences

• Expansion of e.g.f. exp(2*(exp(x) - 1)).at n=8A001861
• Square of lower triangular matrix of A056857 (successive equalities in set partitions of n).at n=36A078937
• Triangular array read by rows: for n, k >= 1, a(n+1, 1) = 2*a(n, n); a(n+1, k+1) = a(n, k)+a(n+1, k).at n=36A129340
• Eigentriangle generated from A109128, row sums = expansion of {2(exp(x)-1)}.at n=54A144061
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals upwards, where the e.g.f. of column k is exp(k*(e^x-1)).at n=57A189233
• Incorrect version of A001861.at n=7A191643
• Number of nonnegative integer arrays of length n summing to n without equal adjacent values modulo 5.at n=13A221318
• Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of e.g.f. exp(k*(exp(x) - 1)).at n=63A292860
• Square array T(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of e.g.f. exp(2 * (exp(x) - Sum_{j=0..k} x^j/j!)).at n=44A336345
• Triangle read by rows. T(n, k) = BellPolynomial(n, k).at n=38A350256