23673

Appears in sequences

• Crystal ball sequence for D_6 lattice.at n=4A008358
• Number of connected functions on n points with a loop of length 9.at n=8A032205
• Number of partitions of n into parts not of the form 19k, 19k+5 or 19k-5. Also number of partitions with at most 4 parts of size 1 and differences between parts at distance 8 are greater than 1.at n=40A035974
• Numbers k such that (18*10^(k-1) - 81)/9 is a plateau prime.at n=8A082703
• Square array, read by antidiagonals, where row n equals the crystal ball sequence for D_n lattice.at n=59A108553
• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1100-0111-0010 pattern in any orientation.at n=13A146459
• Numerators of increasingly better rational approximations to log(3)/log(2) with increasing denominators.at n=24A254351
• Sum of all the parts in the partitions of n into 9 squarefree parts.at n=39A326523
• Expansion of e.g.f. Product_{k>=1} (1 + arcsinh(x^k)).at n=7A330540
• Indices of primes of the form p = 2^i + 2^j + 1, i > j > 0 (A081091).at n=38A360448
• G.f. A(x) satisfies A(x) = 1 + (x * A(x) / (1 - x))^3.at n=14A361932