Location of the first gap of exactly n in Ulam numbers, or zero if none is known. The zero terms are conjectural.
A214603
Location of the first gap of exactly n in Ulam numbers, or zero if none is known. The zero terms are conjectural.
Terms
- a(0) =1a(1) =4a(2) =8a(3) =53a(4) =48a(5) =0a(6) =62a(7) =18a(8) =38a(9) =87a(10) =0a(11) =114a(12) =260a(13) =0a(14) =221a(15) =0a(16) =568a(17) =0a(18) =627a(19) =155a(20) =0a(21) =646a(22) =0a(23) =1724a(24) =695a(25) =0a(26) =282a(27) =0a(28) =1433a(29) =751
External references
- oeis: A214603