1360800

Appears in sequences

• a(n) is least N > 1 congruent to -1,0, or 1 mod i for all i=1,...,n.at n=20A056697
• Fifth column of triangle A075497.at n=5A075510
• Triangle read by rows: T(n,k) is the number of permutations p of [n] in which the length of the longest initial segment avoiding both the 132- and the 321-pattern is equal to k.at n=47A092741
• Hankel transform of A014307.at n=4A121835
• Triangular sequence of coefficients of p(x,t) = t*exp(3*x*t - t^2)/(exp(t) - 1).at n=17A137784
• a(n) = product of numbers k <= n such that not all proper divisors of k are divisors of n.at n=15A158978
• A symmetrical triangle based on Stirling numbers of the second kind :q=2;t(n,m,q)=If[m == 0 Or m == n, 1, If[Floor[n/2] greater than or equal to m, StirlingS2[ n, m]*q^m, StirlingS2[n, n - m]*q^(n - m)]].at n=60A174545
• Bell polynomial B(n,k){3,6,6,0,...,0}.at n=32A187082
• Number of n X n symmetric (0,1) matrices that achieve the record mentioned in A191965.at n=9A191966
• a(n) = smallest m such that A187824(m) = n, or -1 if A187824 never takes the value n.at n=21A220890
• Where record values occur in A187824.at n=13A220891
• Triangular array read by rows. T(n,k) = A008277(n,k)*2^k; n >= 1, 1 <= k <= n.at n=49A227450
• a(n) = A283980(A025487(n)).at n=44A330681
• Denominators of coefficients in the expansion given in A340825 (see Comments at A340844).at n=8A340845