Row 1 of rectangular table A124460; also equals the antidiagonal sums of table A124460.
A124461
Row 1 of rectangular table A124460; also equals the antidiagonal sums of table A124460.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =9a(4) =23a(5) =66a(6) =210a(7) =731a(8) =2744a(9) =10959a(10) =46058a(11) =202028a(12) =919386a(13) =4321837a(14) =20916763a(15) =103958935a(16) =529512396a(17) =2759340117a(18) =14690668955a(19) =79813438230a(20) =442057104246
External references
- oeis: A124461