37222

Appears in sequences

• a(n) is the concatenation of n and 6n.at n=36A009440
• Triangle T(n,k), n >= 1, giving number of prime unoriented alternating links with n crossings and k components.at n=53A059739
• Number of n-digit 7-smooth numbers (A002473).at n=26A085630
• Number of partitions of n such that (greatest part) - (least part) <= number of parts.at n=42A237831
• Table in which the g.f. of row n, R(n,x), satisfies Sum_{k=-oo..+oo} (x^k - n*R(n,x))^k = 1 - (n-2)*Sum_{k>=1} x^(k^2), for n >= 1, as read by antidiagonals.at n=72A370030
• Expansion of g.f. A(x) satisfying Sum_{n=-oo..+oo} (x^n - 6*A(x))^n = 1 - 4*Sum_{n>=1} x^(n^2).at n=6A370036