25718
domain: N
Appears in sequences
- Convolution of natural numbers with Beatty sequence for the golden mean A000201.at n=44A023541
- Indices of primes in sequence defined by A(0) = 41, A(n) = 10*A(n-1) - 9 for n > 0.at n=14A101712
- a(n) is the number of nonnegative integers k less than 10^n such that the decimal representation of k lacks digits 1 and 2, at least one of digits 3,4 and at least one of digits 5,6,7,8,9.at n=4A126628
- Number of distinct solutions of Sum_{i=1..6}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 2..n-2.at n=8A180818
- G.f.: Sum_{n>=0} x^n * Product_{k=1..n} (1 - x^(n+k))/(1 - x^k).at n=41A260894
- Number of 3 X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.at n=12A279710
- Number of compositions (ordered partitions) of n into distinct parts, the least being 2.at n=35A339163