A277591 Numbers k such that k/10^m == 4 mod 10, where 10^m is the greatest power of 10 that divides n.

4, 14, 24, 34, 40, 44, 54, 64, 74, 84, 94, 104, 114, 124, 134, 140, 144, 154, 164, 174, 184, 194, 204, 214, 224, 234, 240, 244, 254, 264, 274, 284, 294, 304, 314, 324, 334, 340, 344, 354, 364, 374, 384, 394, 400, 404, 414, 424, 434, 440, 444, 454, 464, 474

Offset

1,1

Comments

Positions of 4 in A065881.

Numbers having 4 as rightmost nonzero digit in base 10. This is one sequence in a 10-way splitting of the positive integers; the other nine are indicated in the Mathematica program.

Links

Clark Kimberling, Table of n, a(n) for n = 1..10000

Mathematica

z = 460; a[b_] := Table[Mod[n/b^IntegerExponent[n, b], b], {n, 1, z}]
p[b_, d_] := Flatten[Position[a[b], d]]
p[10, 1] (* A277588 *)
p[10, 2] (* A277589 *)
p[10, 3] (* A277590 *)
p[10, 4] (* A277591 *)
p[10, 5] (* A277592 *)
p[10, 6] (* A277593 *)
p[10, 7] (* A277594 *)
p[10, 8] (* A277595 *)
p[10, 9] (* A277596 *)

Crossrefs

Cf. A277588-A277590, A277592-A277596.

Sequence in context: A011534 A277966 A043505 * A017317 A195973 A116963

Adjacent sequences: A277588 A277589 A277590 * A277592 A277593 A277594

Keyword

nonn,easy,base

Author

Clark Kimberling, Nov 05 2016

Status

approved