212058

Appears in sequences

• a(n) = (3^n/n!) * Product_{k=0..n-1} (3*k + 2).at n=6A004988
• a(n) = (3^n/n!) * Product_{k=0..n-1} (3*k + 5).at n=5A004992
• Triangle read by rows in which row n gives coefficients of polynomial R_n(y) that satisfies R_n(1/3) = 3^n, where R_n(y) forms the initial (n+1) terms of g.f. A057083(y)^(n+1).at n=27A097186
• Triangle of z Transform coefficients from General Pascal [1,8,1} A142458 polynomials multiplied by factor 3^Floor[(2*k - 1)/3].at n=27A167786
• Number of permutations of 0..(n-1) representable as 1,3,3,1-weighted consecutive sums of 4 adjacent elements of a sequence of n+3 nonnegative integers.at n=17A180214
• Square array read by antidiagonals downwards: super Patalan numbers of order 3.at n=27A248324
• Triangle read by rows: Riordan array (1/(1-9x)^(2/3), x/(9x-1)).at n=21A283151