172032

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*6^j.at n=29A038236
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*4^j.at n=34A038258
• Number of functions f: {1,2,...,n} -> {1,2,...,n} with even cycles only.at n=7A060435
• 15-almost primes (generalization of semiprimes).at n=8A069276
• a(1) = 1; a(n) is the smallest multiple of a(n-1) not divisible by 10 which is greater than the digit reversal of a(n-1). In case R(a(n-1)) < a(n-1) then a(n) = 2*a(n-1).at n=13A076086
• Triangle read by rows: T(n,k) (0 <= k <= n) is the number of three-dimensional lattice walks consisting of n unit steps, each in one of the six coordinate directions, starting at the origin, never going below the horizontal plane and having k vertical steps.at n=39A104855
• a(n) is the least number having sum of digits n in base 10 and also exactly n prime factors (counted with multiplicity).at n=13A113758
• a(n) = 4^n * n*(n+1).at n=6A116144
• a(n) = floor(2^(n-2)*3*n).at n=13A128543
• Third differences of A129952.at n=15A129955
• a(n) = A138635(n+18)-A138635(n).at n=39A158772
• a(n) = A138635(n+18)-A138635(n).at n=40A158772
• a(n) = A138635(n+18)-A138635(n).at n=41A158772
• Ways to write the identity as a product of n 3-cycles in symmetric group S_4.at n=7A159277
• Number of permutations of 7 indistinguishable copies of 1..n arranged in a circle with exactly 1 local maximum.at n=4A159738
• a(n) = 21*2^n.at n=13A175805
• Rectangular array T(n,k) = binomial(n,2)*k*n^(k-1) read by antidiagonals.at n=38A178756
• Number of defective 3-colorings of an n X 2 0..2 array connected diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order.at n=7A229504
• T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order.at n=37A229510
• T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order.at n=43A229510