82940

Appears in sequences

• Linear recursion with Catalan numbers.at n=8A053369
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, 1), (0, -1), (1, 0)}.at n=16A151497
• Records in A214323.at n=11A214324
• Number of ballot sequences of length n having 2 largest parts.at n=13A244099
• Number of square plane partitions of n with distinct row sums and distinct column sums.at n=41A306320
• a(n) = ((n + 1) - 9*(n + 1)^2 + 8*(n + 1)^3)/6.at n=39A331987