13082689

Appears in sequences

• a(n) = A027641(n) * A164555(n).at n=16A172298
• First differences of A172298.at n=15A172299
• Numerators of first differences of the sequence A172298(n)/A172282(n).at n=15A172457
• Number of n X 3 binary arrays with each 1 adjacent to exactly one 0 vertically and one 0 horizontally.at n=20A183345
• Prime powers (A025475) such that the distance to the nearest prime power is a triangular number (A000217).at n=18A239520