A350601 - OEIS

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A350601

Array read by antidiagonals: row n lists even numbers that are "generated" (in Kaprekar's sense) in all bases 2, 4, 6, ..., 2n.

0, 0, 2, 0, 2, 8, 0, 2, 10, 10, 0, 2, 10, 12, 12, 0, 2, 10, 14, 14, 14, 0, 2, 10, 14, 16, 16, 16, 0, 2, 10, 14, 22, 22, 22, 20, 0, 2, 10, 14, 22, 24, 24, 24, 22, 0, 2, 10, 14, 22, 24, 28, 28, 26, 24

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

OFFSET

1,3

COMMENTS

Max Alekseyev's PARI "Gen" program (see A010061) is essential for computing the rows. Cf. A349833.

LINKS

Table of n, a(n) for n=1..55.

Index entries for Colombian or self numbers and related sequences

EXAMPLE

The initial rows of the array are:

0, 2, 8, 10, 12, 14, 16, 20, 22, 24, 26, 28, 34, 36, 38, 40, 42, 44, 50, 52, ... [the even terms of A228082]

0, 2, 10, 12, 14, 16, 22, 24, 26, 28, 34, 36, 38, 40, 44, 50, 58, 60, 62, 66 ... [A349831]

0, 2, 10, 14, 16, 22, 24, 28, 34, 36, 38, 44, 50, 58, 60, 62, 66, 68, 72, 74, ... [A349832]

0, 2, 10, 14, 22, 24, 28, 36, 38, 44, 50, 58, 60, 62, 66, 68, 74, 76, 82, 84, ... [A349833]

0, 2, 10, 14, 22, 24, 28, 36, 38, 44, 50, 58, 60, 62, 66, 68, 74, 76, 82, 84, ...

0, 2, 10, 14, 22, 28, 36, ...

0, 2, 10, 14, 22, 36, ...

0, 2, 10, 14, 22, 36,...

0, 2, 10, 14, 22, ...

...

The rows converge to A230624, which is

0, 2, 10, 14, 22, 38, 62, 94, 158, 206, 318, 382, 478, 606, 766, 958, 1022, ...

The initial antidiagonals are:

0, 2,

0, 2, 8,

0, 2, 10, 10,

0, 2, 10, 12, 12,

0, 2, 10, 14, 14, 14,

0, 2, 10, 14, 16, 16, 16,

0, 2, 10, 14, 22, 22, 22, 20,

0, 2, 10, 14, 22, 24, 24, 24, 22,

0, 2, 10, 14, 22, 24, 28, 28, 26, 24,

...

CROSSREFS

The first few rows of the array are A228082 (even terms only), A349831, A349832, and A349833.

Cf. A003052, A010061, A230624.

Sequence in context: A154852 A088996 A211888 * A293783 A274541 A301772

Adjacent sequences: A350598 A350599 A350600 * A350602 A350603 A350604

KEYWORD

nonn,tabl,more

AUTHOR

N. J. A. Sloane, Jan 08 2022

EXTENSIONS

[Needs checking and extending]

STATUS

approved