Numbers which can be written uniquely as x^4 + y*(2y+1) + z*(3z+1), where x,y,z are integers with x>=0.
A334147
Numbers which can be written uniquely as x^4 + y*(2y+1) + z*(3z+1), where x,y,z are integers with x>=0.
Terms
- a(0) =0a(1) =9a(2) =42a(3) =57a(4) =127a(5) =218a(6) =243a(7) =272a(8) =412a(9) =467a(10) =554a(11) =555a(12) =571a(13) =724a(14) =909a(15) =1292a(16) =1385a(17) =1448a(18) =1557a(19) =1604a(20) =1897a(21) =2062a(22) =2410a(23) =3025a(24) =3507a(25) =4328a(26) =5907a(27) =8182a(28) =9018a(29) =14654
External references
- oeis: A334147