69553
domain: N
Appears in sequences
- a(n) = a(n-2) + 2*a(n-3) + a(n-4).at n=22A036605
- a(n) = a(n-2)+a(n-3)+a(n-4)+a(n-5)+2*a(n-6)+a(n-7).at n=27A109541
- Numerator of Bernoulli(n,4).at n=6A157920
- Numerators of the higher order exponential integral constants alpha(k,4).at n=3A163927
- Number of binary strings of length n with no substrings equal to 0001 0100 or 0110.at n=18A164463
- Numbers whose septenary, octal and nonary representations are prime when read in decimal.at n=40A281252