50862630208
domain: N
Appears in sequences
- Base 5 digits are, in order, the first n terms of the periodic sequence with initial period 1,3.at n=15A037577
- Number of n X 3 0..3 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, no adjacent elements equal, and upper left element zero.at n=16A231103
- a(n) = (2*5^n + 3*(-1)^(floor((n-1)/3)) + (-1)^n)/6.at n=16A276508
- The number of n-digit numbers which are divisible by 3 and where all decimal digits are odd.at n=15A337753