Numbers which are both the sum of n+1 consecutive triangular numbers and the sum of the n-1 immediately following triangular numbers.
A222716
Numbers which are both the sum of n+1 consecutive triangular numbers and the sum of the n-1 immediately following triangular numbers.
Terms
- a(0) =0a(1) =10a(2) =100a(3) =460a(4) =1460a(5) =3710a(6) =8120a(7) =15960a(8) =28920a(9) =49170a(10) =79420a(11) =122980a(12) =183820a(13) =266630a(14) =376880a(15) =520880a(16) =705840a(17) =939930a(18) =1232340a(19) =1593340a(20) =2034340a(21) =2567950a(22) =3208040a(23) =3969800a(24) =4869800a(25) =5926050a(26) =7158060a(27) =8586900a(28) =10235260a(29) =12127510
External references
- oeis: A222716