Leech triangle: k-th number (0 <= k <= n) in n-th row (0 <= n) is number of octads in S(5,8,24) containing k given points and missing n-k given points.
A001293
Leech triangle: k-th number (0 <= k <= n) in n-th row (0 <= n) is number of octads in S(5,8,24) containing k given points and missing n-k given points.
Terms
- a(0) =759a(1) =506a(2) =253a(3) =330a(4) =176a(5) =77a(6) =210a(7) =120a(8) =56a(9) =21a(10) =130a(11) =80a(12) =40a(13) =16a(14) =5a(15) =78a(16) =52a(17) =28a(18) =12a(19) =4a(20) =1a(21) =46a(22) =32a(23) =20a(24) =8a(25) =4a(26) =0a(27) =1a(28) =30a(29) =16
External references
- oeis: A001293