A089028 a(n) = n+1 where the Hofstadter-Conway Delta A093878(n) >0, otherwise a(n) = 1.

1, 3, 1, 5, 6, 1, 1, 9, 10, 11, 1, 13, 1, 1, 1, 17, 18, 19, 20, 1, 22, 23, 1, 25, 1, 1, 28, 1, 1, 1, 1, 33, 34, 35, 36, 37, 1, 39, 40, 41, 1, 43, 44, 1, 46, 1, 1, 49, 50, 1, 52, 1, 1, 55, 1, 1, 1, 59, 1, 1, 1, 1, 1, 65, 66, 67, 68, 69, 70, 1, 72, 73, 74, 75, 1, 77, 78, 79, 1, 81, 82, 1, 84, 1

Offset

1,2

Links

Table of n, a(n) for n=1..84.

Mathematica

Conway[n_Integer?Positive] := Conway[n] =Conway[Conway[n-1]] + Conway[n - Conway[n-1]] Conway[1] = Conway[2] = 1 digits=200 a=Table[If[Conway[n]-Conway[n-1]>0, n, 1], {n, 2, digits}]

Crossrefs

Cf. A004001.

Sequence in context: A146252 A181641 A049266 * A209758 A134083 A210551

Adjacent sequences: A089025 A089026 A089027 * A089029 A089030 A089031

Keyword

nonn

Author

Roger L. Bagula, Nov 12 2003

Status

approved