48260

Appears in sequences

• Number of isomorphism classes of non-associative non-commutative closed binary operations on a set of order n, listed by class size.at n=14A079194
• Least positive k such that k * [RSA-200]^n - 1 is prime, where RSA-200 is the 200 decimal digit RSA challenge number A391940(15).at n=26A108375
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (0, -1, 1), (0, 0, 1), (1, 1, -1)}.at n=10A148466
• Number of (n+2) X 6 0..2 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..2 introduced in row major order.at n=8A204366
• a(n) = concatenation of periods of periodic sequences of ending digits of multiples of n.at n=3A211770
• a(n) = concatenation of periods of periodic sequences of ending digits of multiples of n.at n=13A211770
• a(n) = concatenation of periods of periodic sequences of ending digits of multiples of n.at n=23A211770
• a(n) = (2*n^4 - 6*(-1)^n*n^2 - 2*n^2 + 3*(-1)^n - 3)/96.at n=39A350050
• a(n) is the sigma irregularity of the n-th power of a path graph of length at least 3*n.at n=18A363706