A024948 a(n) = s(n+3)/3, where s is A024947.

1, 1, 4, 7, 10, 22, 46, 88, 175, 343, 820, 1693, 3448, 7399, 16807, 36322, 76609, 166144, 378730, 831706, 1796773, 3959785, 9004330, 20002942, 43959124, 97356997, 223477834, 500128180, 1109072953, 2483239909, 5696350633, 12837653710, 28703742610

Offset

1,3

Links

Table of n, a(n) for n=1..33.

Crossrefs

Cf. A024947.

Sequence in context: A084386 A275176 A024726 * A296309 A182278 A032818

Adjacent sequences: A024945 A024946 A024947 * A024949 A024950 A024951

Keyword

nonn

Author

Clark Kimberling

Status

approved