1520764

Appears in sequences

• a(n) = A026637(2*n-1, n-2).at n=10A026642
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2) + 2*n - 1, where a(0) = 1, a(1) = 2, b(0) = 3.at n=25A294540