189120
domain: N
Appears in sequences
- Stirling-like number triangle defined by paired decomposition of C(n+3,3) = A000292.at n=39A080416
- a(n) = 4*a(n-1) + 4*a(n-2), n>2, a(0)=1, a(1)=3, a(2)=15.at n=8A155117
- Analog of Fermat quotients: a(n) = (round((phi_2)^p)-2)/p, where phi_2 is silver ratio 1+sqrt(2) and p = prime(n).at n=6A213327
- Cyclically smooth Lyndon words with 3 colors.at n=16A215335
- Number of 4-cycles in the n X n rook graph.at n=15A288962
- Expansion of Product_{k>=0} (1 + x^(4^k))^(4^(k+1)).at n=29A321355
- Expansion of Product_{k>=0} (1 + x^(4^k))^(4^(k+1)).at n=31A321355