65431

Appears in sequences

• n written in fractional base 7/6.at n=29A024643
• Dealing cards in a game of solitaire.at n=19A071761
• Triangle read by rows: the n-th row contains n numbers sorted in decreasing value, each build by dropping a different number from the sequence [n,n-1,n-2,....,1] and concatenating the n-1 others. By definition the first row contains 0.at n=16A081541
• Sp = reversal of some square s where s = x^2 for x = 1,2,.. (ignoring leading zeros). Sp is in the sequence if it is semiprime.at n=34A242097
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 355", based on the 5-celled von Neumann neighborhood.at n=15A287780
• a(n) = Sum_{k=0..floor(n/3)} n^k * binomial(2*n-3*k-1,n-3*k).at n=9A371837