The first of three consecutive octagonal numbers the sum of which is equal to the sum of three consecutive primes.
A298312
The first of three consecutive octagonal numbers the sum of which is equal to the sum of three consecutive primes.
Terms
- a(0) =12160a(1) =74576a(2) =158240a(3) =181056a(4) =269400a(5) =371008a(6) =601216a(7) =606600a(8) =848008a(9) =980408a(10) =1242920a(11) =2075008a(12) =3292816a(13) =3680776a(14) =4477408a(15) =4685000a(16) =5627960a(17) =7505008a(18) =8263480a(19) =9289280a(20) =10397408a(21) =10419760a(22) =10735208a(23) =10757920a(24) =12726680a(25) =13000008a(26) =14200576a(27) =15426936a(28) =15700256
External references
- oeis: A298312