48860

Appears in sequences

• Generalized Stirling numbers, [n+4,4]_2.at n=5A001706
• Number of key permutations of length n: permutations {a_i} with |a_i - a_{i-1}| = 1 or 2.at n=24A003274
• Ratio of each term of the primorial function to the corresponding term of the factorial function (rounded to nearest integer).at n=12A123389
• Triangle read by rows: T(n,k) = (-1)^(n+k)*Sum_{j=1..k} s(n,j), where s(n,j) are the signed Stirling numbers of the first kind (n >= 2; 1 <= k <= n-1; s(n,j) = A008275(n,j)).at n=30A136124
• Unsigned 2-Stirling numbers of the first kind.at n=30A143491
• Triangle read by rows: coefficients of 1; 1(X+2); 1(X+2)(X+3); 1(X+2)(X+3)(X+4); ....at n=33A145324
• Smith numbers of order 3.at n=14A178213
• Number of nonnegative integers with property that their base 7/5 expansion (see A024642) has n digits.at n=28A245423
• Triangle of harmonic numbers T(n, k) = [t^n] Gamma(n+k+t)/Gamma(k+t) for n >= 0 and 0 <= k <= n, read by rows.at n=30A307419
• Number of collinear triples in a 4 X n rectangular grid.at n=41A334706
• Number of digits in the base 10 representation of floor(Bernoulli(2^n)).at n=14A336901
• Triangle read by rows: T(n, k) = Sum_{i=0..n-k} Stirling1(i + m, m)*binomial(n+m+1, n-k-i)*(n + m - k)!/(i + m)!, for m = 2.at n=15A376634