22017
domain: N
Appears in sequences
- Numbers n such that A048767(n+1)=A048767(n).at n=23A048769
- Numbers k>11 such that x^k + x^11 + x^10 + x^9 + x^8 + x^7 + x^6 + x^5 + x^4 + x^3 + x^2 + x + 1 is irreducible over GF(2).at n=39A057488
- Number of n X 2 0..5 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=16A201136
- Number of days after Mar 01 00 such that the date written the format MMDDYY (American standard, short) is palindromic.at n=16A210894
- Number of nX7 arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX7 array.at n=3A219815
- T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nXk array.at n=48A219816
- Number of 4Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 4Xn array.at n=6A219818
- a(n) = a(n-1) + a(a(n-1) mod n) + 1, a(0) = 1.at n=33A308576
- a(n) = Sum_{j=1..n} Sum_{k=1..n} tau(j*k).at n=42A372674
- Nonprime numbers k of the form 4*m+1 such that Sum_{j=0..k-1} 2^j * binomial(3*j, j) == 1 (mod k).at n=36A373747