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A274568 Irregular triangle read by rows in which the n-th row (n>1) lists distinct "factors" of n for the sieve described in A262775. 1
2, 0, 2, 3, 7, 2, 3, 2, 9, 2, 3, 13, 2, 7, 3, 2, 15, 2, 3, 19, 2, 9, 3, 7, 2, 21, 2, 3, 27, 2, 13, 3, 2, 7, 9, 2, 3, 33, 2, 15, 3, 2, 7, 2, 3, 37, 2, 9, 19, 3, 13, 2, 39, 2, 3, 7, 49, 2, 21, 3, 2, 9, 15, 2, 3, 7, 2, 3, 2, 13, 27, 51, 2, 3, 55, 2, 7, 9, 3, 19 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

This sequence is analogous to the prime factors of n, but for the sifted set A262775. If n is equivalent to some term A262775(k) mod A262775(k+1), then row n will include the term A262775(k+1). Row 1 is zero.

LINKS

Max Barrentine, Rows n = 0..10000, flattened

Max Barrentine, Rows n = 0..10000.

EXAMPLE

Row 2 is 2,3 because 2==0 mod 2 and A262775(0)=0, A262775(1)=2, and 2==2 mod 3 and A262775(1)=2, A262775(2)=3.

CROSSREFS

Cf. A262775, A027748, A264940, A272565.

Sequence in context: A308107 A323167 A222753 * A233399 A226432 A072514

Adjacent sequences:  A274565 A274566 A274567 * A274569 A274570 A274571

KEYWORD

nonn,tabf

AUTHOR

Max Barrentine, Jun 28 2016

STATUS

approved

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Last modified October 15 07:56 EDT 2019. Contains 328026 sequences. (Running on oeis4.)