editing
approved
editing
approved
2, 9, 34, 982, 11284, 1048768, 48027971, 23807996588, 3430123782371, 8141109957322587, 4098570575535958632, 46676507893324203092812, 77374614378004006943995980, 4352639823147918661142120756677
a(14) from Vaclav Kotesovec, May 17 2021
approved
editing
editing
approved
V. Kotesovec, <a href="https://oeis.org/wiki/User:Vaclav_Kotesovec">Non-attacking chess pieces</a>, 6ed, 2013, p.307
approved
editing
V. Kotesovec, <a href="httphttps://web.telecomoeis.czorg/vaclav.kotesovecwikimath.htmUser:Vaclav_Kotesovec">Non-attacking chess pieces</a>
editing
approved
proposed
approved
editing
proposed