393660

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*9^j.at n=25A038215
• Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*9^j.at n=24A038227
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*2^j.at n=23A038292
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*3^j.at n=24A038293
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*12^j.at n=16A038302
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*9^j.at n=19A038335
• a(n) = 3*a(n-1), with a(1) = 20.at n=9A116530
• a(n) = (n^3 - n)*9^n.at n=3A128969
• Number of -2..2 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences.at n=7A200547
• a(n) = 2*n*3^(n-1).at n=9A212697
• Numbers k that set records in A355432.at n=41A360589
• Number of integer grid points on the circle around (0,0) with radius A088959(n).at n=31A365620
• Numbers k such that k, A001414(k) and A083345(k) are all multiples of 3, where A001414 is fully additive with a(p) = p, and A083345 is the numerator of the fully additive function with a(p) = 1/p.at n=3A373476