34170

Appears in sequences

• a(n) is the concatenation of n and 5n.at n=33A019553
• Number of square tiles in all tilings of a 2 X n board with 1 X 1 and L-shaped tiles (where the L-shaped tiles cover 3 squares).at n=8A127865
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (0, 0, 1), (1, 0, -1), (1, 1, -1)}.at n=10A148690
• Number of permutations of 4 copies of 1..n avoiding adjacent step pattern up, down, up, up, down, down.at n=2A177668
• Numbers n which appear at least twice in A037278(n), concatenation of their divisors written in base 10.at n=34A248323
• Number of n X 3 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nondecreasing.at n=16A266357
• Number of integer partitions of n whose distinct parts have non-integer median.at n=45A360689