94123

Appears in sequences

• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1000-1001-1111 pattern in any orientation.at n=18A147135
• Concatenation of even n and odd n-th nonprime.at n=18A155492
• Jacobsthal sequence A001045 convolved with A139251 (first differences of toothpick numbers).at n=15A160704
• Number of proper 3-partitions of the vertices of the fan graph on n vertices such that every triangle uses exactly 2 colors.at n=15A389886