49884120

Appears in sequences

• a(n) = (3*n)! / ((n+1)*(n!)^3).at n=7A007004
• a(n) = 15*(n+1)*binomial(n+3,10).at n=10A027795
• a(n) = 22*(n+1)*binomial(n+3,12).at n=8A027797
• a(n) = 165*(n+1)*binomial(n+4,11)/4.at n=8A027807
• Late-growing permutations: number of permutations of 7 indistinguishable copies of 1..n with every partial sum <= the same partial sum averaged over all permutations.at n=2A147694
• Number of permutations of 0..floor((n*3-1)/2) on even squares of an n X 3 array such that each row and column of even squares is increasing.at n=13A215287
• Number of permutations of 0..floor((n*3-2)/2) on odd squares of an n X 3 array such that each row and column of odd squares is increasing.at n=13A215294
• a(0) = 0, a(1) = 1 and a(n) = 6*a(n-1)/(n-1) + 4*a(n-2) for n > 1.at n=20A305032
• Resistance values R < 1 ohm, multiplied by a common denominator 232792560 (= A338600(7)), that can be obtained from a network of exactly 7 one-ohm resistors, but not from any network with fewer than 7 one-ohm resistors.at n=2A338607