64960

Appears in sequences

• Number of partitions of n into parts of 4 kinds.at n=13A023003
• Number of general plane trees whose n-th subtree from the left is equal to the n-th subtree from the right, for all its subtrees (i.e., are palindromic in the shallow sense).at n=12A073192
• Binomial transform of 1,0,1,0,1,1,1,...at n=16A084635
• Number of ways to change three non-identical letters in the word aabbccdd..., where there are n types of letters.at n=28A102860
• a(n) = Sum_{k=1..9} a(n-k); a(8) = 1, a(n) = 0 for n < 8.at n=25A104144
• Expansion of (chi(-x) * chi(-x^19))^(-2) in powers of x where chi() is a Ramanujan theta function.at n=37A134004
• If an array is made of columns of -nacci sequences, fibo-, tribo- etc. all starting w. 1,1,2 etc, the NW to SE diagonals can be extended by computation. The above is diagonal 10. See A159741 for details.at n=7A159747
• The number of zeroless decimal numbers whose digital sum is n.at n=17A258800
• a(n) = Sum_{d|n} -(-1)^d * 2^(n^2/d) * d.at n=3A262826
• Number of separable multisets of size n covering an initial interval of positive integers.at n=17A336103
• Numbers k such that k, k^2-1 and k^2+1 are all fine, where a number m is fine if its prime factors are all less than m^(1/3).at n=14A345896