29139
domain: N
Appears in sequences
- Number of times that the numerator of a sum generated from the set 1, 1/2, 1/3,..., 1/n is prime.at n=15A075188
- Determinant of n X n matrix of first n^2 odious numbers: odd number of 1's in binary expansion (A000069).at n=12A119530
- Coefficient of x^(2*n) in the expansion of (1 + x^3 + x^4)^n.at n=12A192441
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 961", based on the 5-celled von Neumann neighborhood.at n=27A273833
- a(n) is the smallest number whose name in Bengali has n letters, or -1 if no such word exists.at n=13A353043