50680
domain: N
Appears in sequences
- a(n) = T(n, n-4), T given by A026519. Also a(n) = number of integer strings s(0), ..., s(n), counted by T, such that s(n) = 4.at n=11A026524
- a(n) = T(n, n-4), T given by A026552. Also a(n) = number of integer strings s(0),...,s(n) counted by T, such that s(n)=4.at n=11A026557
- T(n,0) + T(n,1) + ... + T(n,n), T given by A026568.at n=12A026580
- Number of 2 X 2 matrices having all terms in {1,...,n} and nonnegative even determinant.at n=19A211066
- Number of (n+1)X(1+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13.at n=3A233974
- Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13.at n=0A233977
- T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13 (13 maximizes T(1,1)).at n=6A233980
- T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 13 (13 maximizes T(1,1)).at n=9A233980
- a(n) = n XOR n^3.at n=37A261807
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 197", based on the 5-celled von Neumann neighborhood.at n=42A270718
- Main diagonal of rectangular array A274390 of coefficients in the iterations of Euler's tree function (A000169).at n=4A274389
- Table of coefficients in the iterations of Euler's tree function (A000169), as read by antidiagonals.at n=40A274390
- Table of coefficients in the iterations of Euler's tree function (A000169), as read by antidiagonals.at n=40A274740
- Irregular triangle read by rows: T(n,m) = number of lattice paths of type B^H terminating at point (n, m).at n=60A291085
- Sum of the even parts in the partitions of n into 6 parts.at n=42A309552
- Nonunitary weird numbers: numbers that are nonunitary abundant but not nonunitary pseudoperfect.at n=15A327948