151563

Appears in sequences

• Variant of triangle A008301, read by rows of 2*n+1 terms, such that the first column is the secant numbers (A000364).at n=26A125053
• Variant of triangle A008301, read by rows of 2*n+1 terms, such that the first column is the secant numbers (A000364).at n=34A125053
• Left half of triangle A125053.at n=16A210111