24996
domain: N
Appears in sequences
- Number of binary strings of length n with no substrings equal to 0001 0100 or 1101.at n=18A164467
- G.f. satisfies: A(x) = Sum_{n>=0} x^n/(1 - x*A(x)^n)^n.at n=9A186999
- Numbers whose squares have 2R-1 digits, such that the number represented by leftmost R digits and number represented by rightmost R digits divide each other evenly.at n=20A216233
- Numbers N such that N = P//Q = R//S, where // is the concatenation function, satisfying the following properties: P and S are m-digit integers, Q and R are k-digit integers, k and m are distinct positive integers, and P*Q = R*S.at n=34A245385
- Numbers in A245385 where P, Q, R, and S are all distinct.at n=14A245386
- Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=13A259003
- Integers without 0 as a digit, with an odd number of digits, that are not repdigits, and such that the 2 products [d_1 d_2...dk]*[d_k+1 d_k+2...d_2k+1] and [d_1 d_2...d_k+1]*[d_k+2 d_k+2...d_2k+1] are equal.at n=7A385145