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A023669 Convolution of A001950 and A014306. 0
0, 2, 7, 12, 19, 30, 42, 57, 75, 93, 114, 137, 162, 191, 222, 255, 292, 330, 372, 414, 457, 504, 553, 605, 660, 716, 777, 839, 903, 972, 1041, 1114, 1190, 1267, 1347, 1427, 1510, 1597, 1684, 1777, 1870, 1966, 2065, 2166, 2271, 2378, 2486, 2600 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..48.

CROSSREFS

Sequence in context: A099353 A188039 A133459 * A137401 A119713 A213041

Adjacent sequences:  A023666 A023667 A023668 * A023670 A023671 A023672

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 13 01:33 EST 2017. Contains 295954 sequences.