33297

Appears in sequences

• a(n) is the concatenation of n and 9n.at n=32A009474
• Numbers whose base-8 representation has exactly 6 runs.at n=8A043628
• Subdiagonal of array of n-gonal numbers A081422.at n=32A081423
• 1/9 the number of (n+1) X 7 0..2 arrays with all 2 X 2 subblocks having the same four values.at n=13A184045
• Number of n X 4 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 5 binary array having two adjacent 1's and two adjacent 0's, with rows and columns of the latter in lexicographically nondecreasing order.at n=4A227331
• Number of n X 5 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 6 binary array having two adjacent 1's and two adjacent 0's, with rows and columns of the latter in lexicographically nondecreasing order.at n=3A227332
• T(n,k) = Number of n X k 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X (k+1) binary array having two adjacent 1's and two adjacent 0's, with rows and columns of the latter in lexicographically nondecreasing order.at n=31A227333
• T(n,k) = Number of n X k 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X (k+1) binary array having two adjacent 1's and two adjacent 0's, with rows and columns of the latter in lexicographically nondecreasing order.at n=32A227333
• Sum of all the parts in the partitions of n into 7 parts.at n=33A308926
• Expansion of g.f. x*(21 + 123*x + 129*x^2 + 4*x^3 + 129*x^4 + 123*x^5 + 21*x^6)/((1 - x)^3*(1 + x + x^2 + x^3)^2).at n=44A377166