23503

Appears in sequences

• Interprimes which are of the form s*prime, s=19.at n=5A075294
• Numbers of unstrained alkane staggered conformers (acyclic). See Table 4 of Cyvin et al. reference for precise definition.at n=10A126880
• a(n) = index of second occurrence of A161926(n) in A114381.at n=10A161927
• Those terms of A255571 whose every A080541/A080542-rotation is also a term of A255571.at n=44A258001
• Capped binary boundary codes for holeless strictly non-overlapping polyhexes (all orientations and rotations included).at n=14A258002
• Capped binary boundary codes for fusenes (all orientations and rotations included).at n=14A258012
• At stage 1, start with a unit equilateral triangle. At each successive stage add 3*(n-1) new triangles around outside with vertex-to-vertex contacts. Sequence gives number of triangles at n-th stage.at n=38A269064
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 654", based on the 5-celled von Neumann neighborhood.at n=42A273332
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 694", based on the 5-celled von Neumann neighborhood.at n=34A273411
• Consecutive internal states of the linear congruential pseudo-random number generator (281*s + 28411) mod 134456 when started at 1.at n=2A383126