253472
domain: N
Appears in sequences
- Numbers k such that sigma(k) + tau(k) + phi(k) is a prime, where sigma(k) = A000203(k), tau(k) = A000005(k) and phi(k) = A000010(k).at n=26A229265
- Number of nX(n+3) arrays of permutations of n+3 copies of 0..n-1 with every element equal to or 1 greater than any north or west neighbors modulo n and the upper left element equal to 0.at n=4A268119
- Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any north or west neighbors modulo 5 and the upper left element equal to 0.at n=7A268121
- 10^n-th powerful number.at n=3A376092