174784

Appears in sequences

• Number of subsets of {1,2,3,...,n} that sum to 0 mod 3.at n=19A068010
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 6.at n=20A068012
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 12.at n=21A068033
• a(n) = (2*8^n + 2^n)/3.at n=6A082412
• a(n) = 10*a(n-2) - 16*a(n-4) for n>=4, with a(0)=a(1)=1, a(2)=6, a(3)=10.at n=12A083333
• Numbers k such that A003313(k) = A003313(6*k).at n=30A116461
• Number of n X 2 binary arrays indicating whether each 2 X 2 subblock of a larger binary array has lexicographically increasing rows and columns, for some larger (n+1) X 3 binary array with rows and columns of the latter in lexicographically nondecreasing order.at n=27A227085