A156583 The subsequence of even digits in A119505.

4, 4, 6, 2, 4, 4, 6, 4, 4, 6, 4, 2, 6, 6, 2, 4, 4, 2, 6, 2, 4, 2, 6, 6, 6, 6, 6, 4, 6, 4, 2, 2, 6, 6, 6, 4, 6, 4, 2, 4, 6, 6, 4, 2, 4, 6, 6, 6, 2, 6, 2, 4, 6, 6, 4, 4, 6, 6, 6, 2, 4, 4, 6, 2, 6, 4, 4, 2, 6, 2, 6, 4, 2, 6, 4, 4, 6, 4, 6, 4, 4, 4, 2, 2, 4, 2, 6, 2, 4, 6, 6, 2, 6, 6, 6, 2, 4, 4, 2, 6, 4, 4, 4, 4, 6

Offset

1,1

Comments

Can be computed from the digits of Pi, A000796, by removing the digits

0,1,2,4,5,6,9, and then replacing 3->4, 7->2 and 8->6.

Links

Harvey P. Dale, Table of n, a(n) for n = 1..2000

Mathematica

RealDigits[Pi, 10, 500][[1]]/.{0->Nothing, 1->Nothing, 2->Nothing, 3->4, 4->Nothing, 5->Nothing, 6->Nothing, 7->2, 8->6, 9->Nothing} (* Harvey P. Dale, Apr 30 2022 *)

Crossrefs

Sequence in context: A110356 A200348 A205868 * A199280 A086171 A369652

Adjacent sequences: A156580 A156581 A156582 * A156584 A156585 A156586

Keyword

nonn,base,less

Author

Paul Curtz, Feb 10 2009

Extensions

Edited, corrected and extended by R. J. Mathar, Feb 23 2009

Status

approved