275842

Appears in sequences

• Residues of the Lucas - Lehmer primality test for M(19) = 524287.at n=14A129223
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A384691.at n=33A384692