A337915 Squarefree multiples of 15 such that a(n)+15 is also squarefree and all integers between are not squarefree.

36442589727570, 59068995605115, 70458333341415, 93553802716515, 99321073884915, 104575423448670, 225934088816670, 241427108122215, 245679971474670, 257496300981015, 263154806220570, 275458942061070, 312686748592170, 425667633054315, 448345051339515

Offset

1,1

Comments

The terms are congruent to 15 or 870 mod 900 (900=2^2*3^2*5^2). The term a(1) is A109505(15) and A109473(10).

Links

Jud McCranie, Table of n, a(n) for n = 1..59

Crossrefs

Cf. A337914.

Sequence in context: A229069 A122126 A318575 * A211112 A132389 A186913

Adjacent sequences: A337912 A337913 A337914 * A337916 A337917 A337918

Keyword

nonn

Author

Jud McCranie, Oct 06 2020

Status

approved