a(n) is the number of integers that can be represented in a 7-segment display by using only n segments (version A277116).
A350440
a(n) is the number of integers that can be represented in a 7-segment display by using only n segments (version A277116).
Terms
- a(0) =0a(1) =0a(2) =1a(3) =2a(4) =3a(5) =8a(6) =12a(7) =19a(8) =33a(9) =55a(10) =103a(11) =170a(12) =297a(13) =509a(14) =875a(15) =1531a(16) =2622a(17) =4546a(18) =7828a(19) =13514a(20) =23379a(21) =40313a(22) =69680a(23) =120232a(24) =207630a(25) =358597a(26) =619066a(27) =1069184a(28) =1845894a(29) =3187511
External references
- oeis: A350440