A359095 a(n) is the index of the smallest square pyramidal number divisible by exactly n square pyramidal numbers.

1, 2, 4, 7, 24, 77, 27, 87, 220, 104, 1007, 175, 1000, 1287, 6187, 10867, 5967, 13727, 5719, 22847, 18980, 21735, 55912, 245024, 195975, 288144, 196735, 108927, 1107567, 5404112, 3145824, 3768687, 5405575, 1245887, 521559, 1101600

Offset: 1

Author

Ilya Gutkovskiy, Dec 16 2022

Keywords

• nonn

Links

• Eric Weisstein's World of Mathematics, Square Pyramidal Number

Crossrefs

Cf. A000330, A342808, A359094.

Extensions

a(11)-a(28) from Jon E. Schoenfield, Dec 17 2022

a(29)-a(36) from Daniel Suteu, Dec 17 2022