24455

Appears in sequences

• a(n) = Lucas(n+1) - (n+1).at n=19A066982
• a(n) = 441*n^2 - 488*n + 135.at n=7A157730
• Number of n X 4 binary arrays with all 1s connected and a path of 1s from upper left corner to lower right corner.at n=4A163004
• Number of n X 5 binary arrays with all 1s connected and a path of 1s from upper left corner to lower right corner.at n=3A163005
• Number of sequences of n coin flips, that win on the last flip, if the sequence of flips ends with (1,1,0) or (1,0,1).at n=26A196382
• Numbers whose sum of even digits and sum of odd digits are equal and whose digits are in nondecreasing order.at n=43A340125
• Array read by antidiagonals: T(m,n) is the number of m X n binary arrays with all 1's connected and a path of 1's from upper left corner to lower right corner.at n=31A359573
• Array read by antidiagonals: T(m,n) is the number of m X n binary arrays with all 1's connected and a path of 1's from upper left corner to lower right corner.at n=32A359573
• Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of these n*k points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of internal vertices in the resulting planar graph.at n=38A367303