22788

Appears in sequences

• a(n) = Sum_{k=0..n-1} T(n,k) * T(n,k+1), with T given by A026626.at n=7A026962
• Denominators of continued fraction convergents to sqrt(542).at n=12A042037
• Expansion of series related to Liouville's Last Theorem: g.f. sum_{t>0} (-1)^(t+1) *x^(t*(t+1)/2) / ( (1-x^t)^4 *product_{i=1..t} (1-x^i) ).at n=27A059821
• Partial sums of floor(2^n/23).at n=18A178457
• Number of length 4+1 0..n arrays with the sum of the squares of adjacent differences multiplied by some arrangement of +-1 equal to zero.at n=12A250279
• Least multiple of n that contains only the distinct digits of n and n+1, with each of those digits appearing at least once.at n=26A328326
• Triangle read by rows: T(n,m) (n >= m >= 1) = number of line segments formed by drawing the lines connecting any two of the 2*(m+n) perimeter points of an m X n grid of squares.at n=40A331454
• Triangle read by rows: T(n,k) = number of heapable permutations of length n with exactly k consecutive pairs.at n=48A389993