A158605 -id:A158605 - cp's OEIS frontend

A158606 Last digit of A158605(n).

6, 3, 9, 2, 5, 8, 1, 4, 7, 0, 3, 6, 2, 9, 5, 8, 4, 1, 0, 7, 3, 6, 2, 9, 5, 8, 1, 4, 0, 7, 3, 6, 9, 2, 5, 8, 4, 1, 7, 0, 6, 3, 9, 2, 5, 8, 4, 1, 7, 3, 0, 6, 2, 9, 5, 8, 1, 4, 0, 7, 3, 6, 9, 2, 5, 8, 4, 1, 7, 0, 6, 3, 9, 2, 5, 1, 8, 4, 0, 7, 3, 6, 2, 9, 5, 4, 8, 1, 0, 7, 3, 9, 6, 2, 5, 8, 4, 7, 1, 0, 6, 3, 9, 2, 5

Offset: 1

Paul Curtz, Mar 22 2009

The sequence is much more irregular than suggested by a naive investigation of the first few blocks of 10 digits each.

Cf. A010879 (final digit), A158605.

read("transforms3") : L := BFILETOLIST("b064413.txt") : L13 := [] : for i from 1 to nops(L) do if op(i,L) mod 13 = 0 then L13 := [op(L13),op(i,L) mod 10 ] ; fi; od: op(1..120,L13) ; # R. J. Mathar, Sep 07 2009

Edited and extended by R. J. Mathar, Sep 07 2009

A158814 Multiples of 10 in the EKG sequence A064413.

Original entry on oeis.org

10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 350, 340, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460, 470, 480, 490, 500, 510, 520, 530, 540, 550, 560, 570

Offset: 1

Paul Curtz, Mar 27 2009

nonn

The first 33 terms are regular, as in A008592.
The multiples of 1 is A064413 itself. The multiples of 2 is A064469. The multiples of 3 are 3*A155963(n).
The first 15 multiples of 4 are 4*A115510, but then become different. The multiples of 5 are A158486,
also represented by A158504. The first 85 multiples of 6 coincide with A008588(1..85), then deviate.
The first 56 multiples of 9 are A008591(1..56), and then deviate. Multiples of 13 are in A158605.

Edited and extended by R. J. Mathar, Apr 04 2009

Corrected by Paul Curtz, Apr 17 2009

cp's OEIS Frontend

A158606 Last digit of A158605(n).

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