278478

Appears in sequences

• Generalized Catalan numbers C(9,9; n).at n=4A064347
• a(n) = 68*2^n - 50 (n>=1).at n=11A304518
• Numbers k whose bi-unitary divisors have an even sum which is larger than 2k, but they cannot be partitioned into two disjoint parts whose sums are equal.at n=33A323342