A381841 Position of the n-th occurrence of the digit 3 in A105083(n-1) for n>=1.

3, 9, 12, 16, 22, 28, 31, 37, 40, 44, 50, 53, 57, 63, 69, 72, 76, 82, 88, 91, 97, 100, 104, 110, 116, 119, 125, 128, 132, 138, 141, 145, 151, 157, 160, 166, 169, 173, 179, 182, 186, 192, 198, 201, 205, 211, 217, 220, 226, 229, 233, 239, 242, 246, 252, 258

Offset

1,1

Links

Table of n, a(n) for n=1..56.

Jeffrey Shallit, The Narayana Morphism and Related Words, arXiv:2503.01026 [math.CO], 2025.

Formula

a(n) = A064105(n) + 1.

a(n) = A136495(n) + A136496(n).

Crossrefs

Cf. A064105, A105083, A136495, A136496, A202342.

Sequence in context: A103531 A333441 A108860 * A006499 A310320 A274676

Adjacent sequences: A381838 A381839 A381840 * A381842 A381843 A381844

Keyword

nonn

Author

Jeffrey Shallit, Mar 08 2025

Status

approved