A241687 Numbers k such that A035014(k) begins with a 3.

3, 4, 5, 7, 8, 9, 10, 12, 13, 14, 16, 19, 24, 27, 28, 30, 31, 32, 34, 35, 36, 37, 38, 39, 41, 42, 44, 46, 47, 51, 53, 55, 56, 59, 61, 63, 64, 65, 67, 68, 69, 71, 72, 76, 82, 83, 84, 85, 87, 89, 92, 93, 96, 97, 99, 100, 102, 104, 105, 106, 109, 111, 113, 114

Offset

1,1

Comments

Numbers k such that A023402(k) = 3.

Links

Jon E. Schoenfield, Table of n, a(n) for n = 1..1000

Example

3 is a term of this sequence because A035014(3) = 344 begins with a 3.

Prog

(PARI) lista(nn) = {my(v=vector(nn), list=List()); v[1] = 4; for (n=2, nn, v[n] = v[n-1] + 10^(n-1)*(4-(v[n-1]/2^(n-1) % 2)); if (v[n]\10^(n-1) == 3, listput(list, n)); ); Vec(list); } \\ Michel Marcus, Feb 27 2022

Crossrefs

Cf. A035014, A023402.

Sequence in context: A081688 A118170 A039094 * A169757 A051374 A225048

Adjacent sequences: A241684 A241685 A241686 * A241688 A241689 A241690

Keyword

nonn,base

Author

J. Lowell, Apr 27 2014

Extensions

More terms from Jon E. Schoenfield, May 05 2014

Status

approved