30459

Appears in sequences

• Number of permutations in S_n with a certain property.at n=16A013498
• a(n) = C(n)*(10*n + 1) where C(n) = Catalan numbers (A000108).at n=7A050489
• Partial sums of A050404.at n=8A052226
• Expansion of (1+8*x)/(1-x)^9.at n=7A056117
• Expansion of -1/(2*x) + (2*x-1)^2/(2*x*(1-4x)^(3/2)).at n=7A141222
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (0, 0, 1), (0, 1, -1), (0, 1, 1), (1, 0, -1)}.at n=8A150671
• Absolute values of the numerators of the third column of ( 0 followed by (interleave 0 , A001803(n))/A060818(n) ) and its successive differences.at n=8A224270
• a(n) = A000203(A276086(n)).at n=29A324653
• Squarefree part of numerator of the squared area of the Heronian triangle with sequential prime sides whose shortest leg is prime(n).at n=7A334177
• Triangle read by rows, T(n, k) = Sum_{j=0..n} binomial(j, k)*A352687(n, j).at n=47A353594
• Expansion of (1/x) * Series_Reversion( x * ((1-x)^3-x)^2 ).at n=4A369512
• Consecutive states of the linear congruential pseudo-random number generator 259*s mod 2^15 when started at s=1.at n=11A384194