a(n) = greatest number of numbers between consecutive appearances of n in A026400.

Terms

a(0) =1a(1) =2a(2) =4a(3) =5a(4) =5a(5) =7a(6) =8a(7) =11a(8) =13a(9) =11a(10) =13a(11) =13a(12) =20a(13) =17a(14) =17a(15) =22a(16) =21a(17) =21a(18) =24a(19) =22a(20) =23a(21) =26a(22) =27a(23) =32a(24) =29a(25) =30a(26) =30a(27) =37a(28) =33a(29) =42