A062285 - OEIS

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A062285

Numbers with the most significant digit even and alternating parity of digits.

0, 2, 4, 6, 8, 21, 23, 25, 27, 29, 41, 43, 45, 47, 49, 61, 63, 65, 67, 69, 81, 83, 85, 87, 89, 210, 212, 214, 216, 218, 230, 232, 234, 236, 238, 250, 252, 254, 256, 258, 270, 272, 274, 276, 278, 290, 292, 294, 296, 298, 410, 412, 414, 416, 418, 430, 432, 434, 436

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Index entries for 10-automatic sequences.

FORMULA

(1 - A000030(a(n)) mod 2) * A228710(a(n)) = 1. - Reinhard Zumkeller, Aug 31 2013

EXAMPLE

4325 is a member as the most significant digit is 4 (even) and the subsequent digits 3, 2, 5 are alternately odd and even.

PROG

(Haskell)