79696

Appears in sequences

• Cascadence of (1+2x)^2; a triangle, read by rows of 2n+1 terms, that retains its original form upon convolving each row with [1,4,4] and then letting excess terms spill over from each row into the initial positions of the next row such that only 2n+1 terms remain in row n for n>=0.at n=42A120914
• Central terms of triangle A120914 (cascadence of (1+2x)^2).at n=6A120917
• Let S denote the palindromes in the language {0,1,2,...,n-1}*; a(n) = number of words of length 4 in the language SS.at n=33A187277
• Number of n X 2 nonnegative integer arrays with upper left 0 and lower right n+2-4 and value increasing by 0 or 1 with every step right or down.at n=34A252870
• Centered triangular numbers that are pseudoperfect (semiperfect).at n=16A377747