69845
domain: N
Appears in sequences
- a(n) = 9973*n + 10007.at n=6A101442
- Number of (n+1) X 4 binary arrays with rows and columns in nondecreasing order and with no 2 X 2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.at n=15A184065
- a(n) is the least number k such that the continued fraction for phi(k)/k contains exactly n elements.at n=17A342867