55377

Appears in sequences

• Expansion of x*(-1+2*x-x^2+7*x^3+8*x^4-7*x^5+8*x^6) / ((4*x^3-x^2+3*x-1)*(2*x^4-2*x^3+3*x^2+1)*(x-1)^2).at n=12A109249
• Numbers k such that 10^9999 + k is a (gigantic) prime.at n=1A142587
• Number T(n,k) of endofunctions f on [n] satisfying f^3(i) = i for all i in [k]; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=30A245958
• G.f. A(x) satisfies: A(x) = x * Product_{k>=1} (1 + A(x^k))^k.at n=13A308370
• Numbers k such that k and the k-th triangular number T(k) = k*(k+1)/2 have only odd digits.at n=10A347475